a sound wave generated from a tuning fork of single frequency travels from air (with speed of sound 340 m/s) into rock (with speed of sound 1500 m/s). which statement is true about the wavelength and frequency of the sound as it passes from air to rock?

Answers

Answer 1

The statement that is true about the wavelength and frequency of the sound as it passes from air to rock is that the frequency remains the same, but the wavelength becomes shorter in rock than in air.

When a sound wave generated from a tuning fork of single frequency travels from air to rock, the frequency of the wave remains the same, but the wavelength changes.

The wavelength of a wave is directly proportional to the speed of the wave and inversely proportional to the frequency of the wave, as given by the equation:

wavelength = speed of sound / frequency

Since the speed of sound is higher in rock than in air, the wavelength of the sound wave will be shorter in rock than in air, as given by the equation above.

Therefore, the statement that is true about the wavelength and frequency of the sound as it passes from air to rock is that the frequency remains the same, but the wavelength becomes shorter in rock than in air.

Learn more about wavelength here:

https://brainly.com/question/31143857

#SPJ11


Related Questions

a motorcycle travels west at a speed of 15 m/s. the driver then reverses the direction and goes east at 17 m/s. what is the change in the velocity of the motorcycle?

Answers

Answer:

Explanation:

let east be the positive direction

Δv = vf - vi = 17 m/s - (-15 m/s) = 32 m/s

if you let west be the positive direction, then

Δv = -17 m/s - 15 m/s = -32 m/s

An athlete running the velocity 23m/s due east is confronted with two trade winds. One wind travelling at 10m/s in a direction north 65degrees east and another wind travelling at 8m/s in a direction south 70degrees east. Find the resultant velocity and direction of the athlete ​

Answers

The athlete's final speed, at an angle of 3.45° south of straight east, is around 24.34 m/s.

What is the final resulting speed?

Add the time the item is being accelerated to the acceleration. For instance, if an item falls for three seconds, multiply three by the acceleration caused by gravity, or 9.8 metres per second squared. In this instance, the resulting velocity is 29.4 metres per second.

Athlete's velocity: vx = 23 m/s, vy = 0 (since the athlete is running due east)

Wind 1 velocity: vx1 = 10 cos(65°) ≈ 3.56 m/s, vy1 = 10 sin(65°) ≈ 9.10 m/s

Wind 2 velocity: vx2 = 8 cos(70°) ≈ -2.28 m/s, vy2 = -8 sin(70°) ≈ -7.61 m/s

The x-component of the resultant velocity is the sum of the x-components of the individual velocities:

vx = vx1 + vx2 + 23 m/s = 3.56 m/s - 2.28 m/s + 23 m/s = 24.28 m/s

vy = vy1 + vy2 = 9.10 m/s - 7.61 m/s = 1.49 m/s

|v| = √(vx² + vy²) = √((24.28 m/s)² + (1.49 m/s)²) ≈ 24.34 m/s

θ = atan(vy/vx) ≈ atan(1.49/24.28) ≈ 3.45°

To know more about speed visit:-

https://brainly.com/question/28224010

#SPJ1

The Schwarzschild radius of a black hole is directly proportional to the black hole mass. A one solar mass black hole has a Schwarzschild radius of about 3km. What then is the radius of a supermassive black hole with a mass of 3 billion solar masses in astronomical units? Compare to the solar system. What planet's radius of orbit is comparable to this black hole radius?

Answers

The radius of a supermassive black hole with a mass of 3 billion solar masses is about 13.5 astronomical units (AU). It is comparable to the radius of Neptune's orbit in our solar system.

The Schwarzschild radius of a black hole with a mass of 3 billion solar masses can be calculated by multiplying the Schwarzschild radius of a one solar mass black hole (3km) by the mass of the supermassive black hole (3 billion solar masses). This gives us a Schwarzschild radius of approximately 8.91 x 10^10 meters.

Converting this radius to astronomical units, we get 13.5 AU, which is equivalent to about 2.02 x 10^12 km.

This is comparable to the radius of Neptune's orbit, which is about 4.5 billion km from the Sun. Therefore, the radius of a supermassive black hole with a mass of 3 billion solar masses is about 0.45 times the distance between Neptune and the Sun.

For more questions like Schwarzschild click the link below:

https://brainly.com/question/31460613

#SPJ11

a box of books with mass 37 kg rests on the level fllloor of the campus bookstoreThe floor is freshly waxed and has negligible friction. A bookstore worker applies a constant horizontal force with magnitude 25 N to the box. What is the magnitude of the acceleration of the box? Express your answer with the appropriate units. uA ? a Value Units Submit Request Answer

Answers

The magnitude of the acceleration of the box is approximately [tex]0.676 m/s^2.[/tex]

How to calculate the magnitude of the acceleration of the box?

To find the magnitude of the acceleration of the box, we can use Newton's second law, which states that the net force on an object is equal to its mass multiplied by its acceleration:

[tex]F_net = m*a[/tex]

where[tex]F_net[/tex] is the net force acting on the box, m is the mass of the box, and a is the acceleration of the box.

In this case, the only force acting on the box is the horizontal force applied by the bookstore worker, so we have:

[tex]F_net = 25 N[/tex]

and

[tex]m = 37 kg[/tex]

Substituting these values into the equation for Newton's second law, we get:

[tex]25 N = 37 kg * a[/tex]

Solving for a, we have:

[tex]a = 25 N / 37 kg[/tex]

[tex]a ≈ 0.676 m/s^2[/tex]

Therefore, the magnitude of the acceleration of the box is approximately [tex]0.676 m/s^2.[/tex]

Learn more about Newton's second law

brainly.com/question/13447525

#SPJ11

When a man on a frictionless rotating stool extends his arms horizontally, his rotational kinetic enrgy:1. must increase2. may increase or decrease depending on his angular acceleration3. may increase or decrease depending on his initial angular velocity4. must remain the same5. must decrease

Answers

When a man on a frictionless rotating stool extends his arms horizontally, his rotational kinetic energy 3. may increase or decrease depending on his initial angular velocity.

This scenario is related to the conservation of angular momentum. When the man extends his arms, his moment of inertia increases due to the change in mass distribution. According to the conservation of angular momentum, the product of the moment of inertia and angular velocity must remain constant (L = Iω). Since the moment of inertia has increased, the angular velocity must decrease to keep the angular momentum constant. The rotational kinetic energy (K) is given by the equation K = 0.5 × I × ω².

When the man extends his arms, the increase in moment of inertia and the decrease in angular velocity influence the rotational kinetic energy. If the decrease in angular velocity is larger than the increase in moment of inertia, the rotational kinetic energy will decrease. Conversely, if the increase in moment of inertia outweighs the decrease in angular velocity, the rotational kinetic energy will increase. Therefore, the correct answer is that the rotational kinetic energy 3. may increase or decrease depending on the man's initial angular velocity.

Learn more about kinetic energy at:

https://brainly.com/question/22174271

#SPJ11

according to the formula for nzl, how is frequency related to nzl?

Answers

Frequency and nzl (number of zero crossings per unit length) are inversely proportional to each other according to the formula nzl = vf, where v is the velocity of the wave and f is the frequency.

The formula for nzl (refractive index minus one) is,

nzl = (c/vl) - 1

where c is the speed of light in a vacuum, and vl is the speed of light in the medium.

Frequency is not directly related to nzl in this formula. However, the refractive index (n) of a medium can depend on frequency. This is known as dispersion, and it means that different frequencies of light may experience different refractive indices and therefore different nzl values in a given medium. In other words, the nzl value can vary depending on the frequency of the light passing through the medium.

To know more about frequency, here

brainly.com/question/12924624

#SPJ4

what impulse does the engine impart to the rocket? express your answer in newton-seconds as an integer.

Answers

What impulse the engine imparts to the rocket, I will need more information, such as the force exerted by the engine and the duration of the force. However, I can explain the general process for calculating impulse using the terms you provided.

Impulse is the product of force and time, and it is expressed in newton-seconds (Ns). To calculate impulse, follow these steps:

1. Determine the force exerted by the engine (in newtons, N).
2. Determine the duration of the force (in seconds, s).
3. Multiply the force by the duration to get the impulse (in newton-seconds, Ns).

Impulse = Force x Time

Once you provide the force and duration, I can help you calculate the impulse imparted to the rocket.

To know more about Impulse:

https://brainly.com/question/29787329

#SPJ11

why are star clusters almost ideal "laboratories" for stellar studies?

Answers

Overall, star clusters provide a unique opportunity to study the properties and evolution of stars in a controlled and relatively simple environment, which can help us better understand the processes that govern the life cycles of stars.

Star clusters are almost ideal "laboratories" for stellar studies for several reasons:

Stellar populations: Star clusters are made up of stars that formed around the same time and from the same cloud of gas and dust. This means that the stars in a cluster have similar ages and compositions, which makes it easier to study their properties and evolution.

Distance: Star clusters are relatively close to Earth, which makes them easier to observe and study in detail. This is because the stars in a cluster are all at roughly the same distance from us, which eliminates distance-related uncertainties and allows us to accurately measure their properties.

Large numbers: Star clusters contain a large number of stars packed into a relatively small region of space. This means that we can observe and study many stars at once, which allows us to gather statistical data on the properties of stars and their evolution.

Interactions: Star clusters are dynamic environments, and the gravitational interactions between stars can affect their evolution. Studying star clusters allows us to observe and understand the effects of interactions between stars, such as binary star systems, stellar collisions, and gravitational interactions between stars.

To know more about star cluster,

https://brainly.com/question/30899528

#SPJ11

This question is about the mantle of the earth. What sub-layers
or transition zones are in the mantle? How do we know this?

Answers

The mantle of the Earth consists of two primary sub-layers and a transition zone. These sub-layers are the upper mantle and the lower mantle, with the transition zone lying between them.

The upper mantle extends from the base of the crust, approximately 35 kilometers below the surface, down to about 410 kilometers in depth. The lower mantle extends from the transition zone down to the Earth's core at approximately 2,900 kilometers. The transition zone, located between 410 and 660 kilometers deep, is a region where the minerals and pressure conditions change significantly. This zone is characterized by a sudden increase in the speed of seismic waves, which indicates a change in the mantle's composition.

We know about these sub-layers and the transition zone primarily through seismic data gathered from the study of earthquake waves. When earthquakes occur, they generate seismic waves that travel through the Earth's interior, these waves can be detected and measured by seismometers located around the world. By analyzing the speed and behavior of these waves, scientists can infer information about the Earth's interior, such as the presence of different layers, their composition, and the variations in temperature and pressure. In summary, the Earth's mantle consists of two main sub-layers (upper and lower mantle) and a transition zone. Seismic data from earthquake waves have provided essential information on these layers, helping us understand the Earth's internal structure.

Learn more about transition zone at:

https://brainly.com/question/15331726

#SPJ11

a heat engine exhausts 8000 j of heat while performing 2400 j of useful work. What is the efficiency of this engine?

Answers

The efficiency of the heat engine is 30%.

To calculate the efficiency of the heat engine, follow these steps:


1. Identify the heat exhausted (Q2) and the useful work (W) performed: Q2 = 8000 J and W = 2400 J.
2. Calculate the total heat input (Q1): Q1 = Q2 + W = 8000 J + 2400 J = 10400 J.
3. Determine the efficiency using the formula: Efficiency = (W/Q1) × 100% = (2400 J / 10400 J) × 100% = 30%.

The efficiency of the heat engine is determined by dividing the useful work performed by the total heat input and multiplying the result by 100%. In this case, the heat engine exhausts 8000 J of heat and performs 2400 J of useful work, resulting in an efficiency of 30%.

To know more about heat engine click on below link:

https://brainly.com/question/28034387#

#SPJ11

5. A net force of 85 N accelerates a bike from rest to 34 km/hr in 12 s. a. What is the mass (in kg) of the bike? 5 marks b. What is the weight in N) of the bike? 4 marks

Answers

To find the mass of the bike, we can use the formula :F = ma ,where F is the net force, m is the mass, and a is the acceleration. We are given that    F = 85 N, and we can find the acceleration using the formula: v = at

where v is the final velocity, t is the time, and a is the acceleration. We are given that the final velocity is 34 km/hr, which we need to convert to m/s:

34 km/hr = 34/3.6 m/s = 9.44 m/s

Substituting this into the formula gives:

9.44 m/s = a(12 s)

a = 0.787 m/s^2

Now we can use the formula F = ma to solve for the mass:

85 N = m(0.787 m/s^2)

m = 108 kg

Therefore, the mass of the bike is 108 kg.

To find the weight of the bike, we can use the formula:

w = mg

where w is the weight, m is the mass, and g is the acceleration due to gravity. We can use the value of g as 9.81 m/s^2. Substituting the mass we found in part (a), we get:

w = (108 kg)(9.81 m/s^2)

w = 1059.48 N

Therefore, the weight of the bike is approximately 1059.48 N.

For more questions like weight visit the link below:

https://brainly.com/question/17966157

#SPJ11

a simple pendulum oscillates with an amplitude of 10.0°. what fraction of the time does it spend between ± 5.0° and – 5.0°? assume shm.

Answers

The simple pendulum spends 50% (or 0.5) of its time between ±5.0° and -5.0°, assuming simple harmonic motion.

A simple pendulum is an example of simple harmonic motion (SHM) where the restoring force is directly proportional to the displacement from equilibrium position. The amplitude of the oscillation is the maximum displacement from the equilibrium position.

To find the fraction of time the pendulum spends between ± 5.0° and – 5.0°, we need to calculate the time period of the oscillation. The time period of a simple pendulum can be given by T = 2π√(l/g), where l is the length of the pendulum and g is the acceleration due to gravity.

Once we have the time period, we can find the time spent by the pendulum in one complete oscillation. The time spent between ± 5.0° and – 5.0° will be half of this time as the pendulum takes equal time to go from +5.0° to – 5.0° and from – 5.0° to +5.0°.

Let's assume the length of the pendulum is 1 m. Then, T = 2π√(1/9.81) = 2.006 s (approx.)

Therefore, the time spent between ± 5.0° and – 5.0° will be half of the time period, which is 2.006/2 = 1.003 s (approx.)

To find the fraction of time, we need to divide this time by the total time period of one oscillation, which is 2.006 s. So, the fraction of time spent between ± 5.0° and – 5.0° will be 1.003/2.006 = 0.499 or approximately 0.5.

Therefore, the pendulum spends almost half of the time between ± 5.0° and – 5.0° during one complete oscillation.

For more such questions on Simple harmonic motion.

https://brainly.com/question/30404816#

#SPJ11

suppose the wavelength of the light is 490 nm . how much farther is it from the dot on the screen in the center of fringe e to the left slit than it is from the dot to the right slit?

Answers

The distance from the center of fringe e to the left slit is the same as the distance to the right slit.

d = (m * λ * D) / (y * D +/- x)

[tex]x_{left} - x_{right}[/tex]= (m * λ * D) / y - (m * λ * D) / y = 0

The term "fringe" can have several different meanings depending on the context. However, one of the most common uses of this term refers to the interference pattern that occurs when waves, such as light or sound, interact with each other. For example, when light passes through a narrow slit or a diffraction grating, it spreads out and produces a pattern of bright and dark fringes on a screen behind it. This pattern is caused by the constructive and destructive interference of the waves passing through the slit or grating.

Fringe can also refer to the edge or border of an object, as in the case of the fringes of a hologram or the fringes of a diffraction pattern. In some cases, the term "fringe" is also used to describe phenomena that are on the boundary or at the limits of our understanding, such as fringe science or fringe theories.

To learn more about Fringe visit here:

brainly.com/question/31315270

#SPJ4

Seismology is the study of seismic waves that move through the Earth's subsurface and can be divided into seismic exploration and earthquake seismology i. Differentiate the seismic methodology used in oil and gas seismic exploration compared to earthquake seismology [6 marks) ii. Analyse the amplitude and frequency of seismic waves recorded in seismic exploration compared to earthquake seismology. [4 marks)

Answers

The differences between the seismic methodology used in oil and gas seismic exploration compared to earthquake seismology is source, objective, data acquisition and finally processing and interpretation.

i. The seismic methodology used in oil and gas seismic exploration compared to earthquake seismology.

1. Source: In oil and gas seismic exploration, the sources of seismic waves are controlled and usually man-made, such as explosives or vibrating machines. In earthquake seismology, the sources are natural, occurring from tectonic activity and the movement of the Earth's crust.

2. Objective: Seismic exploration in oil and gas aims to map subsurface structures and locate potential hydrocarbon deposits. Earthquake seismology focuses on understanding the mechanisms of earthquakes and the Earth's structure.

3. Data Acquisition: In seismic exploration for oil and gas, closely spaced geophones or hydrophones are deployed in a systematic pattern to record the data. In earthquake seismology, data is recorded using a global network of seismometers at various distances from the source.

4. Processing and Interpretation: Seismic exploration data for oil and gas involves complex processing techniques to generate images of subsurface structures. Earthquake seismology data analysis mainly involves identifying and locating the source of the seismic event and estimating its magnitude.

ii.The amplitude and frequency of seismic waves recorded in seismic exploration compared to earthquake seismology

1. Amplitude: Seismic waves from controlled sources in oil and gas exploration typically have higher amplitudes due to their proximity to the recording instruments. Earthquake seismology records lower amplitude signals, as earthquakes usually occur at greater depths and distances from the recording instruments.

2. Frequency: Seismic exploration for oil and gas uses higher frequency waves, usually in the range of 10-100 Hz, to achieve higher resolution for imaging subsurface structures. Earthquake seismology deals with lower frequency waves, generally below 10 Hz, due to the natural sources and the need to study deeper Earth structures.

More on seismology: https://brainly.com/question/13372299

#SPJ11

a block with a mass m is attached to a spring with a spring constant k. the block undergoes shm. where is the block located when its velocity is a maximum in magnitude?

Answers

The block's maximum velocity occurs at the equilibrium position where the restoring force is equal to the force of the mass m and k, and the block is at rest for a moment before starting its oscillatory motion.

The block is located at the equilibrium position when its velocity is a maximum in magnitude. This is because at the equilibrium position, the restoring force provided by the spring is maximum and equal in magnitude but opposite in direction to the displacement of the block. This force causes the block to accelerate towards the equilibrium position, which is where the maximum velocity in magnitude occurs.

Learn more about The block's here:

https://brainly.com/question/31326229

#SPJ11

in a velocity selector, the particles move toward the east, and the magnetic field is directed to the north. what direction should the electric field point?

Answers

The electric field should point towards the west. An electric field is a region of space around a charged object where other charged objects experience a force.

In a velocity selector, the particles are only able to pass through if their velocity is perpendicular to both the magnetic field and the electric field. Since the magnetic field is directed to the north, the electric field must be directed to the west in order to ensure that the particles move in a perpendicular direction to both fields. An electric field is a region of space around a charged object where other charged objects experience a force. The electric field is created by the charged object and is a vector field, meaning it has both magnitude and direction. The strength of the electric field is determined by the magnitude of the charge that creates it and the distance from the charged object. The electric field decreases with distance from the charged object, and its strength can be calculated using Coulomb's law, which relates the force between two charged objects to their charges and the distance between them.

Learn more about electric field here:

https://brainly.com/question/13144816

#SPJ11

what would it weigh on the surface of pluto, where g is 0.0673 times that on earth? give your answer in units of newtons

Answers

The weight of the object on Pluto would be 6.587 Newtons (N).

To calculate the weight on Pluto, we need to use the formula:

Weight = Mass x Gravity

where Mass is the mass of the object and Gravity is the gravitational acceleration on Pluto.

Let's assume the mass of the object is 10 kg.

On Pluto, the gravitational acceleration is 0.0673 times that on Earth, which means:

Gravity on Pluto = 0.0673 x 9.81 m/s² = 0.6587 m/s²

Therefore, the weight of the object on Pluto would be:

Weight = 10 kg x 0.6587 m/s² = 6.587 N

So, the calculation says that the weight of the 10 kg object on Pluto would be 6.587 Newtons (N).

To know more about the Pluto refer here :

https://brainly.com/question/13402868#

#SPJ11

why does a compound microscope produce greater magnification than a magnifying glass? how does the eyepiece lens contribute to magnification?

Answers

A compound microscope produces greater magnification than a magnifying glass due to its complex optical system and higher number of lenses, as well as the use of objective and eyepiece lenses in combination.

The objective lens of a compound microscope is typically a high-powered lens with a short focal length, positioned close to the object being observed.

This allows for higher magnification of the specimen. The eyepiece lens, also known as the ocular lens, is positioned at the top of the microscope and is used to further magnify the image formed by the objective lens.

The eyepiece lens contributes to the overall magnification of the compound microscope by further magnifying the image formed by the objective lens.

The eyepiece lens typically has a lower magnification compared to the objective lens, typically ranging from 5x to 30x. The combined magnification of the objective and eyepiece lenses results in the total magnification of the microscope.

For example, if the objective lens has a magnification of 10x and the eyepiece lens has a magnification of 10x, the total magnification would be 100x (10x multiplied by 10x).

In summary, the compound microscope produces greater magnification than a magnifying glass due to its complex optical system, higher number of lenses, and the combined magnification of the objective and eyepiece lenses.

The eyepiece lens contributes to the overall magnification by further magnifying the image formed by the objective lens.

To know more about compound microscope, refer here:

https://brainly.com/question/1622133#

#SPJ11

In Fig. 20-47. charged particles move in the vicinity of a current-carrying wire. For each charged particle, the arrow indicates the initial direction of motion of the particle, and the or -indicates the sign of the charge. For each of the particles, indicate the direction of the magnetic force due to the mag- netic field produced by the wire.

Answers

For particle A, the magnetic force due to the wire will be out of the page due to the right hand rule.

Since the particle is positively charged, the force is directed opposite to the direction of the magnetic field, which is into the page. Thus, the magnetic force on the particle is out of the page.

For particle B, the magnetic force due to the wire will be into the page due to the right hand rule.

Since the particle is negatively charged, the force is directed in the direction of the magnetic field, which is into the page. Thus, the magnetic force on the particle is into the page.

The direction of the magnetic force that a charged particle experiences is dependent on the sign of the charge and the direction of the magnetic field. The direction of the magnetic field is determined using the right hand rule. The direction of the magnetic force is opposite to the direction of the magnetic field for a positively charged particle, and in the same direction for a negatively charged particle.

Know more about magnetic force here

https://brainly.com/question/3160109#

#SPJ11

the sun will fuse hydrogen into helium for a total of approximately 13 x 109 years. if the rate of energy production is the same as it is today, what will be the sun's total mass loss?

Answers

The sun will lose a total of approximately 2.66 x[tex]10^{24}[/tex] kg of mass during its lifetime of 13 x[tex]10^9[/tex] years, assuming the rate of energy production remains constant.

The sun produces energy through nuclear fusion reactions that convert hydrogen into helium. During these reactions, a small fraction of the mass of the hydrogen is converted into energy according to Einstein's famous equation E=mc², where E is the energy produced, m is the mass lost, and c is the speed of light.

The total energy produced by the sun during its lifetime of 13 x [tex]10^9[/tex]years is:

Energy produced = power x time = (3.828 x[tex]10^{26}[/tex]  W) x (13 x [tex]10^9[/tex] years) x (365.25 days/year) x (24 hours/day) x (3600 s/hour)

= 2.39 x[tex]10^{41}[/tex] J

According to Einstein's equation, the mass lost during this process is:

m = E/c² = (2.39 x [tex]10^{41}[/tex]J)/(9 x 10^16 m²/s²) = 2.66 x [tex]10^{24}[/tex]  kg

Therefore, the sun will lose a total of approximately 2.66 x[tex]10^{24}[/tex] kg of mass during its lifetime of 13 x[tex]10^9[/tex]years, assuming the rate of energy production remains constant.

Learn more about mass ,

https://brainly.com/question/19694949

#SPJ4

When you push a 1.88-kg book resting on a tabletop, you have to exert a force of 2.10 N to start the book sliding. Once it is sliding, however, you can use a force of only 1.01 N to keep the book moving with constant speed.

Answers

Answer:

The coefficient of static friction between the book and the tabletop is:

fs = 2.10 N / 1.88 kg = 1.12

The coefficient of kinetic friction between the book and the tabletop is:

f k = 1.01 N / 1.88 kg = 0.537

The coefficient of static friction is greater than the coefficient of kinetic friction. This is because it is harder to start an object moving than to keep it moving once it is already in motion.

Explanation:

If 5.0 x 10^21 electrons pass through a 20-Ω resistor in 10 min, what is the potential difference across the resistor?a. 21 Vb. 32 Vc. 27 Vd. 37 Ve. 54 V

Answers

The correct answer is 2.66 V which is closest to option C. To solve for the potential difference across the resistor, we need to use Ohm's Law: V = IR, Where V is the potential difference, I is the current, and R is the resistance.

First, we need to find the current: I = Q/t, Where Q is the resistor and t is the time.

We know that 5.0 x 10^21 electrons passed through the resistor in 10 min. To find the charge, we need to multiply the number of electrons by the charge of one electron: Q = (5.0 x 10^21) x (1.6 x 10^-19 C/electron) = 8.0 x 10^2 C

Now we can find the current: I = (8.0 x 10^2 C) / (10 min x 60 s/min) = 1.33 x 10^-1 A

Next, we can use Ohm's Law to solve for the potential difference: V = IR = (1.33 x 10^-1 A) x (20 Ω) = 2.66 V

Therefore, the correct answer is 2.66 V which is closest to option C.

To know more about resistor, refer here:

https://brainly.com/question/24297401#

#SPJ11

The _____________ of a lens or mirror is a point on the optic axis a distance f in front of or behind the lens or mirror.
focal plane
paraxial ray approximation
optic axis
light ray
focal point

Answers

The focal point is a critical concept in optics that helps to determine the behavior of light passing through lenses and mirrors.

The focal point of a lens or mirror is a fundamental concept in optics. It refers to a point on the optic axis, which is a line that passes through the center of the lens or mirror and is perpendicular to its surface. The distance from the lens or mirror to the focal point is known as the focal length (f). The focal point is a critical point in optics because it determines the behavior of light rays passing through the lens or mirror.
For a converging lens, the focal point is a point on the optic axis on the opposite side of the lens from the object. Light rays from an object that is parallel to the optic axis converge at the focal point after passing through the lens. For a diverging lens, the focal point is also on the opposite side of the lens, but the light rays diverge away from the focal point.
Similarly, for a concave mirror, the focal point is a point on the optic axis in front of the mirror, while for a convex mirror, the focal point is behind the mirror. The behavior of light rays reflected or refracted by a lens or mirror can be understood by considering the location of the focal point.

To know more about focal point refer to

https://brainly.com/question/12653475

#SPJ11

why is necessary to take your volume reading water level , only when the levels of water are the same both inside and outside the eudiometer tube (ET )

Answers

It is necessary to take your volume reading water level only when the levels of water are the same both inside and outside the eudiometer tube (ET) because this ensures that the pressure inside the tube is equal to the pressure outside the tube.

The reason to Take your volume reading water level

When the water levels are not equal, it means that there is a difference in pressure which can affect the accuracy of the volume reading.

This is because the pressure difference can cause the gas inside the tube to expand or contract, which can change the volume of the gas. Therefore, taking the volume reading when the water levels are equal ensures that the volume reading is accurate and precise.

Learn more about eudiometer at

https://brainly.com/question/13151442

#SPJ11

A 100-turn, 4.0-cm-diameter coil is at rest with its axis vertical. A uniform magnetic field 60∘ away from vertical increases from 0.50 T to 2.5 T in 0.90 s What is the emf in the coil?

Answers

The EMF in the coil is emf = -N(dΦ/dt) = -100 * 0.00140 Wb/s = -0.14 V

The emf (electromotive force) induced in a coil is given by Faraday's law of electromagnetic induction, which states that:

emf = -N(dΦ/dt)

where N is the number of turns in the coil, Φ is the magnetic flux through the coil, and t is time.

The magnetic flux through the coil is given by:

Φ = BAcosθ

where B is the magnetic field strength, A is the area of the coil, and θ is the angle between the magnetic field direction and the normal to the coil.

Substituting the given values, we get:

N = 100

B1 = 0.50 T

B2 = 2.5 T

[tex]A = \pi *(0.04 m/2)^2 = 0.00126 m^2[/tex]

θ = 60°

The change in magnetic field strength over time is:

[tex]dB/dt = (B2 - B1)/t = (2.5 T - 0.50 T)/(0.90 s) = 2.22 T/s[/tex]

The time rate of change of flux is:

dΦ/dt = dB/dt * A * cosθ = 2.22 T/s * 0.00126 m^2 * cos(60°) = 0.00140 Wb/s

The emf induced in the coil is:

emf = -N(dΦ/dt) = -100 * 0.00140 Wb/s = -0.14 V

Note that the negative sign indicates that the emf induces a current that opposes the change in magnetic flux, in accordance with Lenz's law.

For more questions on EMF, click on:

https://brainly.com/question/17329842

#SPJ11

an mtc student sits at his desk. the earth pulls down on his body with a gravitational force. T/F

Answers

The Earth has a gravitational force that attracts objects with mass towards it. This force acts on the mtc student and pulls his body down. It is true.

What is force ?

Force is an invisible push or pull that acts upon an object. It is a vector quantity, meaning it has both magnitude and direction. Force can be generated by the interaction of two objects, or by the action of a single object on itself. Common examples of force include gravity, friction, and magnetism. Force is an essential part of the scientific study of motion, and is used to describe the relationship between an object’s motion and the amount of energy it possesses. Force can be measured using a variety of instruments, such as a spring scale or a force sensor.

To learn more about force

https://brainly.com/question/12785175

#SPJ1

The Interstellar Medium (ISM) is composed mostly of hydrogen, helium, and a small fraction of 'dust' consisting of silicates, metal oxide grains, and hydrocarbons. What are the two effects that the ISM has on starlight? Explain each.
What are three types of nebulae? Explain and give at least one example of each.
If we can't see through dust with visible light, in what wavelengths can we image it (using false color)?
Explain the difference between HI and HII regions.
What determines where a star will live out it's life on the Main Sequence?
Which of the different exoplanet systems discussed in lecture did you find most interesting? Why?
What was your favorite variable in the Drake Equation? Why?

Answers

The ISM scatters and absorbs starlight. Scattering makes the starlight diffuse and redder, while absorption causes dark absorption lines in the star's spectrum.

The three types of nebulae are planetary, reflection, and emission. Planetary nebulae are the ejected outer layers of dying stars, such as the Helix Nebula. Reflection nebulae are clouds of dust that reflect the light of nearby stars, such as the Pleiades. Emission nebulae are clouds of ionized gas that emit light, such as the Orion Nebula.

Dust can be imaged in infrared and radio wavelengths. Infrared radiation can penetrate dust, allowing us to observe the warm dust around stars. Radio waves can also pass through dust, allowing us to observe molecular clouds.

HI regions contain neutral hydrogen atoms, while HII regions contain ionized hydrogen atoms. HI regions are usually found in the outer parts of galaxies, while HII regions are found near massive stars where ionizing radiation is present.

A star's mass determines where it will live out its life on the Main Sequence. High mass stars burn through their fuel quickly and spend less time on the Main Sequence, while low mass stars burn through their fuel slowly and spend more time on the Main Sequence.

My favorite variable in the Drake Equation is the fraction of civilizations that develop a technology that releases detectable signs of their existence into space. It is exciting to think about the possibility of detecting intelligent life beyond our planet, and this variable represents a key factor in determining the likelihood of such a discovery.

For more questions like Nebulae click the link below:

https://brainly.com/question/9497068

#SPJ11

zero lift occurs at what angle of attack for positive camber airfoil? group of answer choices 0 deg. a negative angle of attack a positive angle of attack cl max

Answers

Zero lift occurs at a negative angle of attack for a positive camber airfoil. The correct option is a negative angle of attack.

The angle of attack is the angle between the chord line of the airfoil and the direction of the oncoming airflow. The airfoil's camber is the curvature of the upper and lower surfaces, with positive camber meaning the upper surface is curved more than the lower surface. At a negative angle of attack, the airflow is directed downward and over the curved upper surface, creating lift. As the angle of attack increases, the lift also increases until it reaches the maximum lift coefficient or cl max. Beyond cl max, the lift decreases and the airfoil may stall.

In this case, the angle of attack must be adjusted to a negative value to counteract the inherent lift created by the cambered airfoil shape. This ensures that the lift generated by the airfoil is zero, allowing for level flight or no net vertical force acting on the airfoil.

So, the correct option is negative angle of attack.

Learn more about airfoil here:

https://brainly.com/question/29880051

#SPJ11

what would most likely happen to new york state's summer and winter temperatures if the tilt of earth's axis increased from 23.5 to 30

Answers

The tilt of Earth's axis affects the distribution of sunlight and results in seasonal changes. If the tilt increased from 23.5 to 30 degrees, it would likely result in more extreme seasonal temperature changes in New York State. Summers would be hotter and winters colder, with a greater difference between the two.

the force f is applied to the wrench to loosen a rusty bolt. what is the direction of the torque applied by this force? the torque is with being the displacement vector from the axis of rotation to where the force is applied.

Answers

The direction of the torque applied by the force depends on the orientation of the force vector and the axis of rotation.

The torque vector is perpendicular to both the force vector and the displacement vector from the axis of rotation to where the force is applied. The direction of the torque can be determined using the right-hand rule.

In the context of loosening a rusty bolt, if the force is applied in a clockwise direction (when viewed from the axis of rotation), the torque will be in the opposite direction, counterclockwise. Similarly, if the force is applied counterclockwise, the torque will be in the clockwise direction.

Learn more about torque, here:

https://brainly.com/question/30338175

#SPJ12

Other Questions
nThere are 3 feet in 1 yard This is equivalent to 12 feet in 4 yards. Which proportion can be used to represent this?12 4120123 4O 1- 1212Mark this and returnSave and ExitNexSubmit the details of each customers account are maintained in the accounts receivable subsidiary ledger.(T/F) Create an expression that has the same value as (6x-4) + (x + 5).Write the correct numbers from the list in the blank boxes. Each numbermay be used once, more than once, or not at all. On the Y axis we have the profit from the trucking company and on the X axis we have the miles the truck has traveled. The company decided that they needed to start paying for a driver at a price of 0.25 cents a mile. After this change what will happen to the x and y axis/slope? A. Y intercept will be less and X will be lessB. Y intercept will be less and X intercept will be greaterC. Y intercept will be greater and X will be greaterD. Y intercept will be greater and X will be less two pans of a balance are 37.8 cm apart. the fulcrum of the balance has been shifted 1.09 cm away from the center by a dishonest shopkeeper. By what percentage is the true weight of the goods being marked up by the shopkeeper? (Assume the balance has negligible mass). Do not enter units the shaft has a diameter of 46 mm and is made of steel for which g = 75 gpa.Determine the angle of twist of wheel B with respect to wheel A. A researcher is analyzing data about students in a school district to determine whether there is a relationship between grade point average and number of absences. The researcher plans on compiling data from several sources to create a record for each student.The researcher has access to a database with the following information about each student.Last nameFirst nameGrade level (9, 10, 11, or 12)Grade point average (on a 0.0 to 4.0 scale)The researcher also has access to another database with the following information about each student.First nameLast nameNumber of absences from schoolNumber of late arrivals to schoolUpon compiling the data, the researcher identifies a problem due to the fact that neither data source uses a unique ID number for each student. Which of the following best describes the problem caused by the lack of unique ID numbers? Nonverbal instruments have been developed primarily in an attempt to:a. assess skill related to mathematics.b. control for the influences of language and culture.c. measure children's pre-reading skills.d. assess issues that individuals cannot verbalize. Could somebody please help me? :c How many independent variables are in the following factorial combination? 2x2x3 a. 1 b. 12 c. 3d. 2 1. (15 pts) At the time of observation, there is a uniform (constant) flux of magnesium (Mg) diffusing through a 2.3 mm thick aluminum (Al) plate at 450C. If the flux is 1.6 Mg atoms/m2s and the concentration of Mg at the exit side of the Al plate is 6.4 x1011 atoms/m2, calculate the concentration of Mg at the entrance surface Use the graph of g to find g(x) = 3.pls help solve quick! Suppose two parallel conducting plates are separated by 0.45 cm of air. * Find the maximum attainable potential difference between the two parallel conducting plates, in kilovolts, given the maximum sustainable electric field strength in air to be 3.0 x 106 V/m. Assume the plates are large enough, compared to their separation, for the electric field between them to be uniform. Grade Summary AV = 1.35 * 10(4) 12% 88% Deductions Potential ( 7 8 9 HOME E 4 6 sino cos tan cotan asino acos atan acotan sinh cosh tanh cotanh Degrees O Radians 1 1 2 3 5 / + - 0 VO BACKSPACE Submissions Attempts remaining 2 (49 per attempt) detailed view 1 496 2 496 3 490 - END DET CLEAR Submit Hint Feedback I give up! Hints: 1% deduction per hint. Hints remaining 1 Feedback: 1% deduction per feedback Submission History letet adnimed in Central Standard Radhon dattesdicatalanak Group the labels according to the type of force they describe. Contact or both or non contact a client is experiencing orthostatic hypotension that is due to antihypertensive therapy. which nursing diagnosis would be most appropriate? Based on your viewing of the NOAA website, how would you know if fooding was about to happen anywhere in Minnesota Wisconsin, lowa, etc? A) The website contains no information about flooding, but it does provide you with a phone number to call if you are worried about rising flood waters in your community B) Giant red letters list specifically the areas to be flooded. C) An auditory alarm sounds and advises people in affected areas to evacuate immediately D) Colored dots on a map indicate the likely area and stage of the flood expected at that location. One of the con arguments states that the economy wont suffer if copyright law is eliminated. The argument is that when someone is given a shared file rather than spending money to buy it, the money isnt lost to the economy; its simply redirected to buy something else, such as a pizza. Is this a fair argument? Why or why not? Much Ado About NothingBenedick falls in love, but is quick to believe lied about his beloved.Select one:True or False Consider the coordinate transformation x = x(u, v) = u + v/2, y = y(u, v) = v - u/2. Determine the Jacobian J = partial derivative (x, y)/partial derivative(u, v) and determine u and v in terms of x and y. Using the transformation given in part (i) of this problem, sketch both regions R and G where G in the uv-plane and R = {(x, y)| 0 lessthanorequalto x lessthanorequalto 1 - y, 0 lessthanorequalto y lessthanorequalto 1}. Set up and evaluate the given integral below in variables u and v where integral^1_0 integral^1 - y e^(x - y)/(x + y) dx dy using the information obtained in parts (i) and (ii) of this problem. a sample of 0.12 mole of nitrogen dioxide gas is confined at 27oc and 2.75 atmospheres. what would be the pressure of this sample at 127oc and the same volume