a solid sphere is placed on a frictionless floor in a very long corridor and is given a quick push so that it begins to slide, without rotating, along the corridor. how would the angular speed of the sphere be changing if the floor were not frictionless? responses it would be increasing until the slipping between the sphere and the floor stops. it would be increasing until the slipping between the sphere and the floor stops. it would be increasing until the translational motion stops. it would be increasing until the translational motion stops. it would be increasing until the linear and the angular speeds become equal. it would be increasing until the linear and the angular speeds become equal. it would remain zero because the net torque is still zero. it would remain zero because the net torque is still zero. it would remain zero because the angular momentum is conserved.

Explanation:

First person:

First person is like you telling a story. It uses words like I or we. For example "I walked to the library after school," would be an example of first person. You are talking about yourself and what you did.

Second person:

Second person is referring to someone else. It uses words like you. This is like in a choose your own adventure book, with a sentence like "You advanced to the next level," or "You opened the door cautiously." You are talking about someone else, usually the person reading what you are righting.

Third person:

Third person is like you referring to someone in general. Common words for third person are she, he, they, them, or it. It is not always you talking about yourself or someone else. Some common examples are "The girl in the red coat then ate the cookie," or "They were in trouble!"

Hope this helps!

The force, net force exerted was found to be 2000N

Define force ?

In mechanics, force is any action that seeks to sustain or modify the motion of a body or to deform it. The idea of force is usually defined in terms of Isaac Newton's three laws of motion, as stated in his Principia Mathematica (1687). Newton's first principle states that a body at rest or moving at a regular pace in a straight line will continue in that condition unless some force is applied to it.

The second law states that when an external force applies on a body, it causes the body to accelerate (change in velocity) in the direction of the force. The acceleration is related to the magnitude of the external force and inversely proportional to the amount of matter in the body. According to Newton's third law, when one body exerts a force on another, the second body exerts an equal force on the first.

the cars weigh was =1250kg

trailer weight was = 550 kg

acceleration=1.60

a) F=ma

=(550)(1.60)

=880 N

b) F=ma

The net force was found to be =880 N

c) F = ma

(1250) (1.6)

=2000N

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The energy dissipation should be 65 Kilo joule.

Power is nothing but measurement the rate of electrical energy transfer by an electric circuit per unit of time. It is denoted by P and measured using the SI unit of power which is watt or one joule per second. Electric power is commonly supplied by electric batteries and produced by electric generators.

So, P = ΔE/Δt

here P = 1 megawatt and time is 65 x 10^-3 sec

putting the values we get that

1 x 10^6 =  ΔE/ 65 x 10^-3

ΔE = 10 ^ 6 x 65 x 10 ^-3

ΔE = 65 x 10 ^3

ΔE = 65 K Joule

hence the energy dissipation should be 65 Kilo joule.

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Answer:

[tex]\huge\boxed{\sf F = 0.28\ N}[/tex]

Explanation:

Mass = m = 68 kg

Velocity = v = 30 m/s

Time = 2 hours = 2 × 60 × 60 = 7200 s

Force = F = ?

[tex]\displaystyle F = \frac{mv}{t}[/tex]

[tex]\displaystyle F = \frac{(68)(30)}{7200} \\\\F = \frac{2040}{7200} \\\\F = 0.28 N\\\\\rule[225]{225}{2}[/tex]

The acceleration of free fall on the planet is given by 39.2 m/s².

The acceleration of free fall is the acceleration at which a body falling freely experiences the gravitational pull of a single planet. It is also known as a gravitational acceleration.

Value of  the acceleration of free fall on earth is 9.8 m/s².

The formula of acceleration of free fall on any planet is given by:

g₁ = GM/R²

As the extrasolar planet appears to be rockier and denser than earth. it is 16 times as massive as earth, but its diameter is only twice that of earth, the acceleration of free fall on any planet is given by:

g₁ = GM/R² = 16GMe/(2Re)² = 4 GMe/Re = 4g = 4× 9.8 m/s² = 39.2 m/s² .

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Density and refractive index are class characteristics and match does not meet the criteria for individualizing glass fragment to a common source is true.

The only way to individualize glass fragments at a crime scene to a single source is to assemble the fragments and physically fit them together just like a jigsaw puzzle.

Glass is physical and class evidence. Glass can be considered as an individual evidence if the pieces of broken glass can be reassembled & can help in identifying location, sequence of events & object identity

Forensic glass samples can be analyzed by comparing refractive index of the sample to the possible source.

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When scientists refer to the cosmos as expanding, they indicate that it has been expanding ever since the Big Bang, when the universe first began.

Everything in the cosmos is all the matter and energy that are present in space are included. Additionally, it naturally encompasses you and time itself. The other planets and their numerous moons, in addition to Earth and the Moon, make up the cosmos.

Due to their frequent confusion, it's also critical to understand the distinction between space and the universe. All celestial bodies, matter, energy, galaxies, solar systems, and other such physical entities are collectively referred to as the universe. Space, on the other hand, describes the bare space in between all of these things.

As of right now, there is no evidence to support the existence of multiple universes; instead, what we can see points to the existence of just one, namely, our own.

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Gravity and the Tension in the cable are the forces acting on the beam.

What is gravity force?

Gravity is the force that practically all material objects in the universe experience. From subatomic particles to clusters of galaxies, gravity affects objects of all sizes. The movement of planets around the sun and the free fall of apples from trees are both caused by this force.

A force throughout a medium's length is called tension, and in this context the force is carried particularly by a flexible medium like a rope or cable. Tension is measured in Newton per meter in the SI system. The forces acting on the beam are

So, there are two force acting on the cable is gravity and tension force.

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A baseball is thrown vertically upward and feels no air resistance. As it is rising its momentum is not conserved, but its mechanical energy is conserved.

Momentum may be defined as a unique property of a moving body that the body has by virtue of its mass and motion and that is equal to the product of the body's mass and velocity.

According to the context of this question, as an object typically moves along the vertical direction, the gravitational potential energy, and the kinetic energy change. So, due to this, its momentum is not conserved, but its mechanical energy is conserved.

Therefore, a baseball is thrown vertically upward and feels no air resistance. As it is rising its momentum is not conserved, but its mechanical energy is conserved.

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A. The average speed of the flea is 0.52 m/s

B. the centripetal acceleration of the flea is 1.8 m/s²

A. How do I determine the average speed?

We'll begin by obtaining the angular velocity. This can be obtained a follow:

ω = 2π/ T

ω = (2 × 3.14) / 1.8

ω = 3.49 rad/s

Finally, we shall determine the average speed. This is shown below:

v = ωr

v = 3.49 × 0.15

v = 0.52 m/s

Thus, the average speed is 0.52 m/s

B. How do I determine the centripetal acceleration?

Haven obtain the average speed in the calculation made above, we can determine the centripetal acceleration as follow:

a = v² / r

a = (0.52)² / 0.15

a = 1.8 m/s²

Thus, the centripetal acceleration is 1.8 m/s²

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This statement is untrue. A pseudo force is centrifugal force. It's not true. Since there is a hole in the spin dryer's drum, there is nothing to cause the water to move in a circular motion or exert a high centripetal force.

The force that pushes an item rotating away from its axis of rotation is known as centrifugal force. The propensity of an object travelling in a circle to move away from the circle's center is known as centrifugal force. When viewed from a rotating frame of reference, the centrifugal force in Newtonian mechanics appears to act on every object. It is pointed away from the origin of the coordinate system, along an axis that is perpendicular to the axis of rotation.

When rotating coordinate systems are used to analyze rotating objects, such as centrifuges, centrifugal pumps, centrifugal governors, and centrifugal clutches, as well as centrifugal railways, planetary orbits, and banked curves, the concept of centrifugal force can be applied.

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The correct answer is pyruvate to oxaloacetate.

Enzymatic activation of pyruvate kinase increases cytosolic oxaloacetate to inhibit the Warburg effect is a research paper written by Elizabeth K Wiese, Sadae Hitosugi, Sharon T Loa, Annapoorna Sreedhar, Lindsey G Andres-Beck, Kiran Kurmi, Yuan-Ping Pang, Larry M Karnitz, Wilson I Gonsalves and Taro Hitosugi.

Avidin is a glycoprotein,  four identical subunits are there in avidin. It is found in white part  of the egg of reptiles, amphibians, and birds.

Avidin binds in specific manner with biotin.

Avidin  is resistant to some of the enzymes like  pancreatic enzymes.

Therefore, the conversions of Pyruvate into glucose and  and the conversion of  Pyruvate  into oxaloacetate would be blocked if  the  avidin is added  to a cell homogenate.

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Amplitude of wave at power of 50 W is 7.07 cm and the average power of the wave after increasing the temperature 8 times the initial power.

(a) Length of the string (l) = 8 m

Mass of the string (m) = 6 g

Wavelength of the string (λ) = 0.2 m

Wave speed (v) = 30 m/s

Average power (P) = 50 W

Mass per unit length (μ) = (6 × 10⁻³ ) / 8 = S  ×  v

Angular speed (ω) =  2 × π × f

= (2 × π × v ) / λ

= (2 × π × 30) / 0.2

Now, Average power (P) = (1/2) ×  ρ × ω² × A² × S × v,

Thus, Amplitude (A) =

= (1/ω)  × √((2 × P)/  (ρ × μ))

= A = [ (0.2) / 2×π × 30 ] √ ((2×50×8)/ (6 × 10⁻³ × 30 ))

= A = 0.0707 m

= A = 7.07 cm

(b) Average power = P

Wave speed = V

Using the equation of Power = (1/2) ×  ρ × ω² × A² × S × v,

We can see that P ∝ ω² × v

= P ∝ v² × v

= P ∝ v³

Thus, when wave speed of string is doubled, the average power will be 8 times.

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The mass moment of inertia is 11873.0833

Einstein interpreted Mach's revelation to indicate that since gravity was/is the only known long-range force that could produce such effects, inertia would emerge as a "inductive" gravitational effect of cosmic matter in any correctly constructed theory of gravity.

Inertia is greater for lighter objects than for heavier ones. An object's bulk or weight have no bearing on its inertia. Every object has inertia, but only when it is at rest. The inertia of lighter items is lower than that of heavier ones.

width b = 17.0

length d = 29.0

The mass moment of inertia is d* b* b*b / 12

= 29.0 * 17.0 * 17.0 * 17.0 / 12

= 11873.0833

The unifying force of the universe is inertia. Literally. Without it, matter would not possess the electric forces required to create its current configuration. The heat and kinetic energy created by moving particles work to resist inertia.

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The two sound waves should have a rhythm in order to create beats.

Option d). slightly different frequencies

The frequency of an event is its repetitions per unit of time. In contrast to spatial frequency, it is also sometimes referred to as temporal frequency, and in a contrast to angular frequency, it is also referred to as ordinary frequency. Hertz (Hz), which equals one (event) per second, is the unit of frequency. The reciprocal of frequencies is period, which is defined as the length of time for one cycle of a recurring occurrence. For instance, if a heart beats 120 times per minute (2 hertz), its period (T), or the space between beats, is half a second (60 seconds divided by 120 beats). In science and engineering, frequency is a crucial specification parameter.

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For having a perfect fronts armhole one need to measure the armhole depth.

How to measure armhole depth?

To measure armhole depth one trick is to wrap a measuring tape from the shoulder to the armpit.

One can take measuring tape  down over the front of the shoulder and arm, pausing once it hits the center of armpit. This measurement is referred to as your Armhole depth.

Formula for measuring the correct armhole

An armhole is a sleeve that joins body and shoulder by which the sleeve meets the body at the underarm.

There is a Formula for measuring the correct sleeve and each specific site has its own table to measure the perfect armhole

In Centimeters the formula is

Bust/6 + 3.5 to 6cm

In inches the formula is

Bust/6 + 1.37 to 2.3 in

The usual width of the armhole is 4-6cm  

If a person is XS -S most likely they will have 4cm of width for their sleeve

And if the person is M, L or XL, most likely they will have width of 5-6cm

Hence this can also be taken as reference.

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The maximum speed of the mass is Vmax = 1.69m/s.

E = 10 J and m = 7kg

Vmax = [tex]\sqrt{\frac{2 * 10}{7} } = 1.69[/tex]

Vmax = 1.69 m/s

The maximum device electricity takes place when the vibrating mass reaches its maximum top and the item's velocity is maximum. while the pendulum hits its lowest factor, capability power is converted into kinetic power.

This is because the pendulum is accelerating because it hits its lowest factor. consequently the kinetic power of the pendulum is maximum at the lowest factor. the entire electricity of the block and spring device is identical to the sum of the ability electricity saved within the spring and the kinetic energy of the block proportional to the rectangular of the amplitude.

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The collision is precisely inelastic in nature since both runners were trapped together following the successful tackle.

Speed is defined as the ratio of the distance traveled to the time required to cover that distance. Speed is a constant of proportionality since it just has a component and no magnitude.

Speed is calculated by dividing the distance traveled by the amount of time it required to get there. Divide the distances by the speed to find the passing time. Combine the speed by the time to find the distance. These equations may appear shortened as s=d/t

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The spring is compressed by 0.312 m

A spring is a single element of stiffness that is a component of a system; the simplest type is a spring-mass-damper with one degree of freedom. A string that is being pulled creates a complete, continuous system with its own internal mass and stiffness.

The spring constant is defined as the force per unit length change. There is no doubt that the length will change when force is applied if a string is used in place of the spring. Only the external tension, which is equal to the external pull, will be transmitted by the string.

[tex]F - mg\\= maF= 60(3+ 10)\\F= 780 N\\F= kx\\780= 2.5*10^3\\X= 780*10^-3/2.5\\X= 78^1^0^-^2^/^2^.^5\\X= 780*10^-^2^/^2^5\\X= 31.2*10^-^2\\X= 0.312 m.[/tex]

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The dark lines represent the light frequencies that the gas has absorbed. The energy levels of the electrons increase as photons of light are absorbed by them. The opposite of emission is this

A waveform signal that is carried in space or down a wire has a wavelength, which is the separation between two identical places (adjacent crests) in the consecutive cycles. This length is typically defined in wireless systems in meters (m), centimeters (cm), or millimeters (mm).

Any discrete value from a set of total energy values for a subatomic particle constrained by a force to a finite space or for a system of such particles, such as an atom or a nucleus, is referred to as the energy level, also known as the energy state, in physics.

In addition to emitting photons, atoms can also absorb photons. The electron in the lower energy level can absorb the photon and go up to the higher energy level if a photon strikes an atom and its energy is equal to the difference between its two electron energy levels.

It absorbs light at wavelengths of 410 nm (violet), 434 nm (blue), 486 nm (blue-green), and 656 nm in the visible region of the spectrum (red). Every absorption line relates to a distinct electron jump.

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The term is growth.

This term is used to define the physical development of height and weight in an individual.

The growth depends on an individual.

During the growth the hands and feet are likely to grow. This develops the height of any individual and the weight is also defined as the individual grows.

It is the continuously changes of the characteristics of the body, most noticeable in height and weight.  

The ages 13-15 and 17-18 the two major brain growth spurts occur. In times of growth spurts the changes is visible during the first year of puberty.

Therefore, the term for periods of accelerated physical development with associated changes in height and weight is growth.

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A firefly glows by the direct conversion of chemical energy to light is 7.5625 almost equal to 8 molecules.

What is chemical energy ?

chemical dynamism, Chemical bonds within substances contain energy. Exothermic chemical reactions are those that release chemical energy during the process, frequently in the form of heat. Some of the heat energy that is used to drive reactions that need to be heated up for them to continue may be stored as chemical energy in newly created bonds.

What is intensity?

As well as being the same as the energy density times the wave speed, intensity is the amount of energy a wave transports over a surface of a given area in a unit of time. Watts per square meter is the most used unit of measurement. A wave's power and amplitude will determine its intensity.

Here wavelenght (w) = 550 * 10^-9 m

we know that, speed of light(c) = ffrequency(f) * w

therefore f = (299 792 458 / 550 * 10^-9)

f = 5.45 * 10^14 s^-1

also we know that E = plancks constant(h) * f

E = 6.62606957(29)×10-34 * 5.45 * 10^14 s^-1

E = 3.63 * 10^-19 J

we know taht we require 3.63 * 10^-19 J amount to produce one photon.

0.30*1.6*10^-19 J of energy is provided by 1 molecule of ATP.

therefore, 1 J is provided by = 1 / 4.8*10^-20 molecules.

therefore, 3.63 * 10^-19 J is provided by = 3.63 * 10^-19*(1 / 4.8*10^-20 ) molecules

=7.5625 almost equal to 8 molecules. ((Used unitary method))

Therefore, a firefly glows by the direct conversion of chemical energy to light is 7.5625 almost equal to 8 molecules.

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The order that a geologist most likely investigate subsurface geology in exploring for fossil fuels are:

1. Look at already exposed surfaces.

2. Perform geophysical surveys.

3. Drill an exploration hole.

Hydrocarbon molecules like coal, natural gas, and oil are examples of fossil fuels. They are created when buried, ancient creatures decompose anaerobically. Natural gas and oil often form from sea sediments, whereas coal typically arises from terrestrial sediments.

Therefore, The study of the physical characteristics and locations of rock and soil found below the surface of the ground is known as subsurface geology. The materials beneath man-made structures are among the most important reasons to learn about the subsurface.

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See full question below

in which order would a geologist most likely investigate subsurface geology in exploring for fossil fuels? put the first step on top.

Look at already exposed surfaces.

Drill an exploration hole.

Perform geophysical surveys.

The Centre of Mass will be 2.74 m from the front.

The CM of an empty 1150 kg car is 2.35 m behind the front of the car.

New position of the center of mass = (1150*2.70 + 130*3.75+ 195*2.35)/(195+130+1150) =  2.7462 m from the front

CM new = 2.603 from the front.

Thus, the Centre of Mass will be 2.74 m from the front.

The center of mass is a position defined relative to an object or system of objects. It is the average position of all the parts of the system, weighted according to their masses. For simple rigid objects with uniform density, the center of mass is located at the centroid.

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The range of the wavelength 650-740 nm is of the colour red, 390-420 nm is of the colour violet, 510-550 nm is of the colour green, 450-480 nm is of the colour blue, 570-600 nm is of the colour yellow, 600-640 nm is of the colour orange.

The visible region of the electromagnetic spectrum ranges from higher frequency (violet) to lower frequency (red).

All the forms of electromagnetic radiation fall within the electromagnetic spectrum.

Electro magnetic energy travels in waves that contains a broad spectrum from radio waves to gamma rays. The human eye can detect a very small portion of this spectrum known as visible light ranging from 380-700 nano metres.

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kinematics can answer all the following questions except, Why does a baseball drop to the ground down after being thrown?

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The distance to the concession booth is 1.386 kilometers, or kilometers per hour. A swim meet's length is influenced by a number of variables.

Explanation:

d = 0.18 * 7.7 = 1.386km/hr.

The distance to the concession booth is 1.386 kilometers, or kilometers per hour.

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The answers to the questions are (a) 3.17J, (b) -13.75J, and (c) -16.7J, respectively.

The degree to which a person taking the appropriate, intellect, wisdom, insight, empathy, etc., as demonstrated by their actions or by some other mental product, such as a scholarly paper, argument, piece of art, etc. a substantial amount of such wisdom, understanding, etc. usually depths.

Utilize U=mgy, wherein y is evaluated in relation to a standard. Here, y is calculated relative towards the well's top edge, where y is set to zero.

(a) y = 1.2m: U=mgy = (0.27kg)(9.80m/s²)(1.2m)=+3.17J

(b) y = –5.2m: U=mgy = (0.27kg)(9.80m/s²)(–5.2m) = −13.75J

(c) ΔU = Uf − Ui = (−13.75J)−(3.17J) = −16.92 = −17J

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The two independent components of Projectile motion in 2D plane are horizontal and vertical.

Projectile motion is nothing but a form of motion experienced by an object or particle that is projected in a gravitational field, such as from Earth's surface, and moves along a curved path under the action of gravity only. It means the object is thrown from earth and due to the gravity object is again coming back to earth.

When object is moving up, the velocity it has can be derived into  its components horizontally and vertically because velocity is a vector quantity.

V = Vx + Vy

where V is the resultant vector and Vx and Vy are the horizontal and vertical components of the velocity.

Hence the two independent components of Projectile motion in 2D plane are horizontal and vertical.

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