For the beam that is attached to the wall from two ends the failure mode occurs at the point of application of force.
When a beam is attached to a wall on two ends, on both these points there is a normal force exerted by the wall on the beam. Therefore, any failure will occurs in between these two points due to an external force.
This failure or this maximum force that the beam can withstand can be found out by bending moment diagram. According to this diagram, the failure occurs at the mid-point of the beam. If the force is uniform or acting on the mid-point of the beam.
If the force is anywhere except at the mid-point then the failure occurs at the point of application of the force. The maximum force is present at the point of application and from the nearest end, the force linearly increases.
Therefore, any failure will occur at the point of application of force whether force is applied on the mid-point or any other point.
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my car has an internal volume of 2600 liters. if the sun heats my car from a temperature of 200c to a temperature of 550c, what will the pressure inside my car be? assume the pressure was initially 760 mm hg.
The pressure inside the car will be 850 mmHg
This is written as
P1 / T1 = P2 / T2, where,
P1 , T1 - the pressure and temperature of the gas at an initial state
P2, T2 - the pressure and temperature of the gas at a final state
When plugging in your values into this equation, don't forget to convert the temperature from degrees Celsius to Kelvin.
So, rearrange and solve for P2 to get
P2 = T1 / T2 . P1
P2=(273.15+55)K / (273.15+20)K ⋅ 760 mmHg = 850.74 mmHg
P2 = 850 mmHg
Pressure , within the physical sciences, the perpendicular force in step with unit per area , or the stress at a factor inside a restricted fluid.
The SI unit of pressure is pascal (represented as Pa) which is identical to one newton in line with rectangular metre (N/m2 or kg m-1s-2).
A easy instance of pressure can be seen by retaining a knife to a bit of fruit. In case you keep the flat part of the knife towards the fruit, it might not reduce the area. The force is spread out of a massive vicinity (low strain).
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real machines are not 100% efficient because . group of answer choices the energy input is always less than the energy output that would require the work output to be 100 times the work input, which is impossible some of the energy input is always transformed into thermal energy that would require the work input to be 100 times the work output, which is impossible some of the energy input is always transformed into gravitational potential energy
It is impossible for real machines to be 100 % efficient.
Because some of the effort performed by a machine is spent to reduce friction, machines are not entirely efficient. Therefore, work output is never more than work intake.
Because some energy is lost to overcome friction, a machine's efficiency is never 100% because its output energy is never equal to its input energy.
When we say "100% efficiency," you indicate that all of the energy from your input should be converted to energy from your output. However, this is not feasible because heat loss and wear and tear will undoubtedly result in some loss.
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what is the speed of the center of mass just as the rod hits the table if the table is frictionless?
Because we already know the angular acceleration, we can calculate the angular velocity as: =t=3FtML. As a result, the velocity of the center of mass may now be expressed as v=(L/2)3FtML=3Ft2M.
Is the center of mass's speed constant?As long as the system is closed, the velocity of the system's centre of mass remains constant. The system moves as if all of the mass is concentrated in one place. Throwing a tennis racquet causes the racquet to revolve around its center of mass. The centre of mass, on the other hand, does not spin; instead, it follows a parabolic path, as if it were a point particle. Similarly, the centre of mass of an exploding bullet will continue on the parabolic trajectory. The final location will be determined by calculating the weighted distance between the masses.
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Initially, a person is sitting stationary on stool that can rotate on a frictionless pivot, and the person is holding a spinning wheel with its axis vertical as shown. The moment of inertia of the person+stool about the stool's axis is Ip 20 kg m2. The wheel has moment-of-inertia Iw 5 kg m2 about it axis and it is initially spinning at f 4 revs/s. The person briefly reaches up, presses her hand against the wheel, slowing the wheel so that is it spinning at 2 revs, always holding the wheel axis vertical. What is the final rotation rate of the person, after the wheel has slowed? |w = 5 kg m2 |w = 5 kg m2 fw = 4 rev/s fw = 2 rev/s Ip - 20 kg m2 Ip 20 kg m f=? Initial Final
The final rotation rate of the person, after the wheel has slowed according to conservation of angular momentum is 0.5 rev/sec.
Conservation of angular momentum is a physical property of a spinning system in which the spin remains constant unless acted on by an external torque; in other words, the rotational speed is constant as long as the net torque is zero.
Moment of inertia of wheel , Iw = 5kg m2
Moment of inertia of inertia of person + stool, Ip =20kg
Initial angular speed fw = 4 rev/s
Initial angular speed, f = 0 rev/s
Final angular speed of wheel, fw' = 2 rev/s
Let, final angular speed of person + stool, f' = ?
From angular momentum conservation, we have the formula
Iw * fw + Ip * f = Iw * fw' + Ip * f'
That gives, 5 * 4 + 20 * 0 = 5 * 2 + 20 * f'
20 = 10 + 20 * f'
20 * f' = 20 - 10
20 * f' = 10
f' = 10/20
f' = 1/2 or 0.5
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What happens to inflation and unemployment during a period of stagflation?.
The inflation rate will be high or increasing and unemployment will remains steadily high during a period of stagflation.
What is Inflation?Inflation can be described as the rate of increase in prices over a given period of time howver the Inflation serves as the broad measure, which can be seen in the overall increase in prices as well as the increase in the cost of living in a country.
It should be noted that in economics, stagflation can be regarded as the recession-inflation which is a case wheeby inflation rate is high or increasing, and in this case the economic growth rate slows, whereby the unemployment remains steadily high and thee will be a problem in the process of making economic policy, becvauise when trying to lower inflation may affect unemployment.
In conclusion, inflation rate will be high and in this case the unemployment will remains steadily high as a result of stagflation.
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since we are embedded in the disk of our galaxy, the stars in it stretch across a dark sky like a faint white band. this lead to the greeks to name it galaxias kyklos, which translates into the name . multiple choice question.
Its stars appear as a thin white strip that stretches throughout the night sky. Due to this, the Greeks gave it the name galaxias kyklos, which is equivalent to the name Milky Way Galaxy.
what is The Milky Way is a single galaxy, right?The universe contains billions of galaxies, the Milky Way galaxy being just one of them. Everything that is present is contained within the cosmos, a vast region of space. Every galaxy, star, and planet is present in the cosmos.
Presently, where is the Milky Way galaxy?The Milky Way looks brightest inside the direction of a constellations Sagittarius, Ophiuchus, and Enhances the chance, where the Galactic Center is located. It is also optically close to the Butterfly Cluster (M6) or even the star Shaula, and further south to the Pipe Nebula.
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What is the relationship between dipole moments and the magnitude of the partial charges?.
The relationship between dipole moments and the magnitude of the partial charges is that they are directly proportional
What is relationship between dipole moments and the magnitude of the partial charges ?The dipole moment increases with the magnitude of the electronegativity difference. The size of the dipole moment is also determined by the charge separation distance. A measurement of a molecule's polarity is its dipole moment.
The bond dipole moment's size depends on the atoms' distance from one another and their partial charges. Because not all polar molecules have the same amount of a dipole moment, not all molecules are equally impacted by electric fields.
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Homework Help Please! 3 0 p t s
A current-carrying wire is held in a vertical direction. In order to make a clockwise magnetic field around the wire, the current should be passed in the straight wire:
from bottom to top
from left to right
from top to bottom
from right to left
A current-carrying wire is held in a vertical direction. In order to make a clockwise magnetic field around the wire, the current should be passed in the straight wire of option C: from top towards bottom.
What kind of wire carries the current?When a current-carrying wire is positioned in a magnetic field created by an external source, such as a permanent magnet, it feels a magnetic force. A wire that is carrying current generates its own magnetic field as well.
The right hand thumb rule states that if you hold a wire carrying electricity in your right hand with your thumb pointing in the direction of the current, the magnetic lines of force will be represented by the direction in which your fingers wrap around the wire.
As a result, a current-carrying conductor is held precisely vertical. Current should flow through the conductor from top to bottom in order to create a clockwise magnetic field around it.
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Clay particles have sites that have ___a___ charges that can attract and hold ___b___.
Clay particles have sites that have negative charges that can attract and hold cations.
What is clay?Clay can be described as a type of fine-grained natural soil material containing clay minerals such as Karolin. Clays form plasticity when wet, because of a molecular film of water with the clay particles, but become brittle, hard, and nonplastic upon drying or firing.
Most pure clay minerals are light-colored or white, but natural clays show many colors from impurities, such as a reddish color from a small quantity of iron oxide.
The tiny size form of clay particles provides clay minerals with a high surface area. The plate's form of clay particles carries a negative electrical charge that is balanced by surrounding positive ions or cations, such as potassium, sodium, or calcium.
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What are the 7 types of electromagnetic waves and their uses and application?.
The 7 types of electromagnetic waves are
1. Radio waves: Radio waves are used for communication.
The frequency range of radio waves are
3 KHz - 3 x 10^2 GHz
2. Microwaves: Microwaves are used for heating and data transmission.
The frequency range of microwaves are
1 GHz - 10^3 GHz
3. Infrared waves: Infrared waves are used in remote control and imaging applications.
The frequency range of infrared waves are 3 x 10^2 GHz - 4 x 10^2 THz
4. Visible light: Visible light helps us see everything around us.
The frequency range of visible lights are
4 x 10^2 THz - 7 x 10^2 THz
5. Ultraviolet Waves: Ultraviolet waves are useful in the study of celestial bodies.
The frequency range of ultraviolet waves are 7.5 x 10^14 Hz - 3 x 10^16 Hz
6. X-rays: X-rays are used in medical instruments to view the bone structure of the body.
The frequency range of X-rays are
10^16 Hz - 10^20 Hz
7. Gamma rays: Gamma rays are used in the nuclear industry as well as in medicine.
The frequency range of gamma Ray's are
3 x 10^18 Hz - 5 x 10^22 Hz
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in deep water, a wave is not really migrating but is transferring energy through the water in simple cyclic undulations. these are called
In deep water, a wave is not really migrating but is transferring energy through the water in simple cyclic undulations. These are called waves of transition.
What is meant by waves of transition?Transitional waves are waves that move through water at a depth of 1/20 L D 1/2 L, which is less than half the wavelength but greater than one-twentieth the wavelength. Often wind-generated waves that have entered shallower water are transitional waves. The wave effect deformation begins at the specified beginning point and spreads over the mesh with rectilinear or circular wave fronts that are parallel to the X or Y axes.a wave that is accompanied by a significant net motion of the fluid, even if the wave moves more quickly than the fluid. Rivers have translator flood waves. A smaller group or subset of the Transition-related actions that must be carried out or accomplished before the Provider can provide the Services is referred to as the "Transition Wave."To learn more about waves of transition refer to:
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How does neighborhood influence your life?.
Environmental hazards such as neighborhood violence and pollution can lead to poor health conditions.
The chronic stress of living in an area with high crime poverty and dilapidated buildings can affect parenting and in turn affect children. How you view your neighborhood and the people around you can also change how you interact with the people around you.
Areas with poor housing few or no libraries unsafe public spaces, and poverty can lead to depression and negatively affect personal relationships. Neighborhood effects on voting behavior. In political science, the neighborhood effect defines an individual's propensity to vote in a particular direction based on the relationship effects of those who live nearby.
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the galactic distances used to measure the acceleration of the universe are determined by observations of question 6 options: a) trigonometric parallax b) hubble's law c) exploding white dwarfs (supernovae) d) cepheid variable stars
The galactic distances used to measure the acceleration of the universe are determined by observations of exploding white dwarfs (supernovae). Correct answer: letter C.
Because the brightness of a supernova is known very precisely. By measuring the brightness of a supernova, astronomers can calculate its distance from Earth. This allows them to measure the distance of far away galaxies and compare them over time to determine the acceleration of the universe.
What are white dwarfs?
White dwarfs are the dense, glowing remains of stars that have exhausted their nuclear fuel. These stars range in mass from about 0.6 to 1.4 times the mass of the Sun and are about the size of Earth. White dwarfs are some of the oldest stars in the universe, with lifespans of billions of years.
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What is the range of electronegativity for polar nonpolar and ionic bondings?.
The range of electronegativity for polar nonpolar and ionic bonding will be between 1.5 and 2.1
Electronegativity is a chemical property that describes the tendency of an atom or a functional group to attract electrons toward itself.
The range of electronegativity for polar nonpolar and ionic bonding . So, the difference in electronegativity is somewhere between 1.5 and 2.1, between a polar covalent bond and an ionic bond.
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The range of electronegativity for polar nonpolar and ionic bonding is less than 0.4 and greater that 0.4, respectively.
In general there are two major categories of bonds, which are polar molecules and nonpolar molecules.
In the field of chemistry, polarity can be described as the distribution of electric charge around atoms, chemical groups, or molecules.
When there is an electronegativity difference between the bonded atoms then polar molecules are formed. Water - [tex]H_{2}[/tex]O, Ammonia - N[tex]H_{3}[/tex] are some of the examples of polar molecules.And when electrons are shared equal between atoms of a diatomic molecule or when polar bonds in a larger molecule cancel out each other then non polar molecules are formed. Any of the noble gasses: He, Ne, Ar, Kr, Xe, Benzene, methane etc are some of the examples of the molecules which forms non polar bondAnd if we talk about ionic bond, which are also be called as electrovalent bond, type of linkage formed from the electrostatic attraction between oppositely charged ions in a chemical compound. These types of bond forms when the outermost electrons of one atom are transferred permanently to another atom.There is no hard and fast rule but in general, a bond is considered as non polar if the difference in electronegativities is less than about 0.4, and it will be called a polar bond molecule if the difference is greater than 0.4.
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Determine the magnitude of the initial vertical velocity of the projectile, viy, when the magnitude of its initial velocity, vi, was 40. meters per second. [1]
A projectile was fired with initial velocity of 40 m/s and at angle 30⁰ above the horizontal. Its initial vertical velocity is 20 m/s.
In a projectile motion, at a time instant t, the velocity v can be divided into its horizontal and vertical components: vx and vy. Let the projectile is fired at angle θ above the horizontal, then:
vx = v cos θ
vy = v sin θ
Where:
v = velocity at time instant t
Parameters given:
v = 40 m/s
θ = 30⁰
Hence, the vertical velocity is:
vy = v sin 30⁰
= 40 . 1/2 = 20 m/s
Complete question:
Determine the magnitude of the initial vertical velocity of the projectile, vy, when the magnitude of its initial velocity, v, was 40. meters per second and the angle is 30⁰ above the horizontal.
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600/3thef irst thing youl need to go is determine the spacing of gri lines remember tracys world is 400 pixels x 400 pixels
The assertion is accurate. 600/3 Determine the gridlines' spacing first; keep in mind that Traces World is 400 pixels by 400 pixels.
What is meant by pixels?A pixel has a value given to it and indicates the value of a certain square inside the image. The formula for calculating the total number of pixels in a picture is the same as the one for calculating the area of a rectangle: the number of pixels across times the number of pixels down. The fundamental color-programming unit on a computer screen or in a digital image is the pixel, a word that was created from the phrase "picture element." Consider it more as a logical than a physical unit. In a digital display, pixels are the smallest unit.On a screen or computer image, a pixel is a region of illumination or color. PPI gauges a computer monitor or screen's pixel density or display resolution.The complete question is:
600/3 the first thing you'll need to go is determine the spacing of gridlines remember traces world is 400 pixels x 400 pixels true/false
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A 9. 0-kg hanging weight is connected by a string over a pulley to a 5. 0-kg block sliding on a flat table. If the coefficient of sliding friction is 0. 20, find the tension in the string
The push magnitude and the tension of the code is 5.
4 × 10^-4
What is cord?
cord is the slender flexible material usually consisting of several stands or twisted together.
It is wired coverd in rubber or plastic which connects electrical equipment to an electricity supply.
The free body diagram as per the question with the tension of string T .
The force of gravity ~mg
The force of air ~f
Since the sphere is motionless the net force on it is 0.
And the x and y are the components of equation are zero
Tsin + 0 = F
Tcos - mg= 0
Where ¥ = 32°
Thus we get
T= (3.9×10^-4 kg ) (9.8m/s^2)/cos32°
= 2.1×3.2×10^-4
Solving T
We can get the F =
(3.2×10^-4)sin 32° =
5.4 ×10^-4
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What are the 7 electromagnetic waves in order from lowest to highest frequency?.
The electromagnetic spectrum is divided into seven different frequency ranges, which are, from lowest to highest, radio waves, microwaves, infrared, visible light, ultraviolet, X-rays, and gamma rays.
The electromagnetic spectrum includes electromagnetic waves with frequencies between one hertz and above 10²⁵ hertz, or wavelengths between thousands of kilometers and a small portion of the size of an atomic nucleus. The electromagnetic waves found within each of these bands are referred to by a different name; starting at the low frequency (long wavelength) end of the spectrum, these are radio waves, microwaves, infrared, visible light, ultraviolet, X-rays, and gamma rays. This frequency range is divided into separate bands.
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The compass of an airplane indicates that it is headed due north, and its airspeed indicator shows that it is moving through the air at 240 km/hr. if there is a wind of 100 km/hr from west to east, what is the velocity of the airplane? 155 km/hr with directional bearing n65.8Ëše 260 km/hr with directional bearing n67.4Ëše 260 km/hr with directional bearing n22.6Ëše 155 km/hr with directional bearing n24.6Ëše
If airspeed indicator shows that it is moving through the air at 240 km/h through a wind of 100 km/h from west to east, the velocity of the airplane is 260 km / h and the direction is 67.4° N of E
V of airplane = 240 km / h ( N )
V of wind = 100 km / h ( E )
Since North is in y-axis and East is in x-axis,
Vy = 240 km / h
Vx = 100 km / h
V² = Vx² + Vy²
V² = 100² + 240²
V² = 10000 + 57600
V = √ 67600
V = 260 km / h
tan θ = Vy / Vx
tan θ = 240 / 100
tan θ = 2.4
θ = 67.4° N of E
Therefore, the velocity of the airplane is 260 km / h and the direction is 67.4° N of E
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Answer:
C
Explanation:
Although ________ satellites are the most expensive to build and launch, they also have the longest orbital life of many years.
Is called radiogenic heat?.
Within the subject of technology, radiogenic heat may be described because of the type of warmth that is released when radioactive isotopes disintegrate. consequently, we say that the thermal strength is launched by means of the nuclear disintegration of the radioactive isotopes.
Approximately 50% of the Earth's inner warmness originates from radioactive decay. four radioactive isotopes are chargeable for the general public of radiogenic warmness because of their enrichment relative to different radioactive isotopes uranium-238 (238U), uranium-235 (235U), thorium-232 (232Th), and potassium-40 (40K).
Radioactive heating refers back to the power dissipated within the interiors of planets, satellites, or asteroids as a consequence of the radioactive decay of radioactive isotopes (see radiochemistry). Radioactive isotopes are characterized by their decay energies and their half-lives.
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what will happen to the force needed to keep something in a circular path if the radius doubles while other variables stay the same?
The force doubles as it is directly proportional to the radius.
Does anything move faster when it follows a circular path?A shift in velocity can occur in either its magnitude (speed), its direction, or both. Even if the speed may be constant in uniform circular motion, there is always an accompanying acceleration since the direction of the velocity is continually changing.
What maintains the car's trajectory in a curve?Friction between the tyres and the road causes the centripetal force that causes the car to turn in a circular motion. If there isn't enough friction, the car will move in a curve with a larger radius and veer off the road.
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a compact disc contains an extremely thin sheet of aluminum. if you put a larger block of metal in a microwave oven along with a cd and turn the oven on, what happens?
If you put a larger block of metal in a microwave oven along with a cd and turn the oven on Only the CD becomes hot enough to soften and sparks dance about its surface.
CDs use very thin aluminum foil. When you put a large metal block in the microwave with the CD and turn on the oven, only the CD gets hot enough to soften and spark off its surface. Microwaves transfer heat to food primarily through water molecules.
Microwaves transfer heat to food primarily through water molecules. Higher frequencies and shorter wavelengths. A microwave oven heats water because microwave radiation interacts with the dipoles of water molecules. Microwaves spin water molecules back and forth at roughly the same frequency as microwaves, giving them energy.
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An inductor with L = 9.55 mH is connected across an ac source that has voltage amplitude 49.0 V You may want to review (Pages 1023 -1028) For related problem-solving tips and strategies, you may want to view a Video Tutor Solution of An inductor in an ac circuit Part A What is the phase angle ф for the source voltage relative to the current? Express your answer with the appropriate units. ANSWER:
The phase angle ф for the source voltage relative to the current the and Frequency is 192.14 H.
Phase angle b/w VL and inductor is 90°
Angular frequency, w = 2 pi f
VL = I XL
Frequency, f = VL/2 pi L I = 49/(2 pi x 4.25 x 0.00955) = 192.14 Hz.
The formula = 2/T yields the angular frequency. In radians per second, the angular frequency is expressed. The frequency, f = 1/T. the reciprocal period. The number of full oscillations per unit of time is given by the motion's frequency, f = 1/T = /2. Angular frequency and velocity are related to displacement and revolution velocity, respectively. full response Angular frequency is a scalar measure of rotation rate, also known as angular speed, radial frequency, circular frequency, and orbital frequency.
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__________refers to the capability of systems to self-stabilize in response to external forces or stressors, or more simply the capability of systems to maintain homeostasis refers to the capability of systems to self-stabilize in response to external forces or stressors, or more simply the capability of systems to maintain homeostasis.
Homeostatic capacity
Homeostasis, The monitoring of internal environmental conditions is part of homeostasis, a sort of homeostasis that is necessary to support life in the human body.
What does the body's equilibrium entail?Homeostasis is a self-regulating process that enables an organism to retain internal stability while adapting to shifting external situations. It has emerged as the key unifying idea of physiology.In biology, homeostasis refers to the constant internal, external, and chemical conditions that are upheld by biological systems. This is the state in which the organism is operating at its peak potential, and it entails maintaining numerous parameters—including body temperature and fluid balance—within predetermined ranges.To learn more about Homeostasis refer to:
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In a certain population, the frequencies of two alleles A and a are equal. The population inbreeds such that f = 0.3. What is the frequency of each genotype in the population? Multiple Choice AA: 0.35, Aa: 0.3, aa: 0.35 AA: 0.325, Aa: 0.35, aa: 0.325 AA: 0.25, Aa: 0.5, aa: 0.25 The genotype frequencies cannot be calculated from the provided information.
The frequency of AA individuals is 0.25, the frequency of Aa individuals is 0.5, 0.25 the frequency of aa individuals is
What is frequency?
The frequency of a repeating event is its number of instances per unit of time. In some cases, it is also referred to it as temporal frequency or ordinary frequency to emphasise differences with spatial and angular frequencies, respectively. One (event) per second is equal to one hertz (Hz), which is how frequency is expressed. The period is indeed the reciprocal of a frequency because it is the length of time for one cycle in a repeating event. When a heart beats 120 times per minute (2 hertz), for instance, the period (T), or space between beats, is half a second. In science and engineering, frequency is a crucial parameter for describing the temporal rate of change seen in oscillatory as well as periodic phenomena.
Let q and p represent the frequency of each allele, respectively.
If A and a have equal frequencies, then p = q = 0.5
because p + q = 1. The equation p2+2pq+q2 = 1
can be used because the population has been in
Hardy-Weinberg equilibrium.
As a result, the frequency of AA individuals is p2 = 0.52 = 0.25,
the frequency of Aa individuals is 2pq = 2 x 0.5 x 0.5 = 0.5,
and the frequency of aa individuals is q2 = 0.52 = 0.25.
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a gas in a sealed container has pressure 01, volume v1 and absolute temperature t1. the container is flexible. suppose the volume of the container is reduced
The temperature of the gas change by T2 = 2T1
Temperature is the degree of the average kinetic energy of the debris in an item. while the temperature will increase, the movement of this debris additionally will increase. Temperature is measured with a thermometer or a calorimeter.
calculation:-
The initial pressure of the gas = P1
The initial volume of the gas = V1
The initial temperature of the gas = T1
Final pressure of the gas = P2 = 4P1
Final volume of the gas = V2 = V1/2
The final temperature of the gas = T2
P₁V₁/T = P₂V₂/T₂
P₁V₁/T = (4P₁)(V₁/2)/T₂
T2 = 2T1
Final temperature of the gas = T2 = 2T1
Temperature is just a dimension that indicates the common kinetic energy of 1 atom or molecule. as a result, when we are saying something is warm or bloodless, we're generally using any other reference point to define the hotness and coldness of a frame.
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Disclaimer:- your question is incomplete, please see below for the comlete question.
A gas in a sealed container has pressure p1, volume v1, and absolute temperature T1. The container is flexible. Suppose the volume of the container is reduced to V2=V1/(2) and the pressure changes to p1=4p1. How did the temperature of the gas change? Is it: 1.) T2=2T1 2.) T2=4T1 3.) T2=T1/(2) 4.)T2=T1 5.) None of the above 6.) T2=T1/(4)
when light passes through sequential interfaces, there may be a change of phase upon reflection at each interface. additionally the wavelength changes with each change of the index of refraction. for convenience, the index of refraction for a variety of materials is provided below.
Phase change occur if the light reflected from surface of dense medium by π.
What will be the index of refraction for a b=variety of materials?Hence first phase change π. Second is zero
As wavelength propagate from rare to denser medium.
Its wavelength decreases.
λ¹ = η₀λ/ηdiamond
λ¹ = λ(ηwater / ηdiamond)
Condition for, 2ηdcos r = (m + 1/2)λ - λ/2
2d = mλ×ηwater / ηdiamond
What is wavelength?A spectrum is the term used to describe the range of wavelengths or frequencies for wave phenomena. The term was originally used to describe the electromagnetic spectrum, but it is now now used to describe the sound spectrum and vibration spectrum.
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a 0.75-kg block slides on a rough horizontal table top. just before it hits a horizontal ideal spring its speed is 3.5 m/s. it compresses the spring 5.7 cm before coming to rest. if the spring constant is 1200 n/m, the thermal energy of the block and the table top must have:
The thermal energy of the block and the table top must have 2.64J
Thermal energy of block W = KE
W = 1/2 m[tex]v^{2}[/tex]
Thermal energy of table top compressed by the spring
W = PE
W = 1/2 K[tex]x^{2}[/tex]
Total energy of block and table tab is
W = KE - PE
= 1/2 m[tex]v^{2}[/tex] - 1/2 K[tex]x^{2}[/tex]
W = 2.64J
Thermal energy is the term used to describe the energy present in a system that determines its temperature. The movement of thermal energy is heat. Thermodynamics is an entire field of physics that examines how work is done and how heat is transferred between various systems (see the first law of thermodynamics). In many physics and engineering contexts, the term "thermal energy" is used figuratively. It can refer to a number of distinct, clearly defined physical concepts. Included in this are the internal energy or enthalpy of a body of matter and radiation, heat, which is a form of energy transfer (as is thermodynamic work), and the characteristic energy of a degree of freedom.
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A scuba diver ascends too quickly and develops the bends. A nitrogen bubble has formed in the patient's elbow. At a depth of 61 ft, where the pressure is 2.85 atm, the bubble had a volume of 0.019 mL. Assuming a constant temperature and number of moles of nitrogen in the bubble, what volume did the bubble increase to at the surface, where the pressure is 1.00 atm? bubble volume at surface: mL The scuba diver is placed into a hyperbaric oxygen chamber where the pressure is 3.62 atm. What is the volume of this same nitrogen bubble while the patient is in the hyperbaric chamber? bubble volume in chamber: mL
Assuming that the nitrogen, which can and does dissolve in the blood, does not.
How much bigger did the bubble get at the surface?Boyle's law can be used to calculate the pressure times the volume under one set of conditions equals the pressure times the volume under the other set of conditionsAssuming that the nitrogen does not dissolve in the blood, which it can and does.To compute the volume under different circumstances, we shall set the value to equal p 1 v 1 over p 2 and not 2.70 atmospheres.The pressure at 56 feet was 2.70 atmospheres, and the bubble's volume was 0.018 milliliters; at 1 atmosphere, it would have been 0.0486 milliliters.This group of divers was subsequently placed in a hyperbaric oxygen room at 3.64 atmospheres.The nitrogen bubble's volume will remain unchanged.The volume of.018 milliliters is determined by the calculation of 2.70 atmospheres.In this case, 3.64 atmospheres will equal 0.0134 milliliters when we divide that by the new volume or the new pressure.This is assuming that the nitrogen doesn't dissolve into the blood under these extreme pressures, which it might.To more learn about Volume refer to:
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