Kinetic energy? A 1500 kg car is traveling 30 m/s along a horizontal road when the brakes are applied. The car skids to a stop in 4 s. How much kinetic energy ( in J) does the car lose in this time ? Physics Question ?? HELP

What is the kinetic every, potential energy and acceleration of gravity in this experiment? If you drop a ball from a certain height, were is the kinetic energy and potential energy? And how about the acceleration energy?

Why does kinetic energy increase with the square of velocity? I was thinking kinetic energy would behave similarly to momentum. For example a smaller projectile could have much more kinetic energy than a larger one but less momentum. I don't know that doesnt make much sense to me. If anyone could help me understand it would be much appreciated.

How much kinetic energy does the lighter one gain? A 8.50kg shell at rest explodes into two fragments, one with a mass of 1.50kg and the other with a mass of 7.00kg. If the heavier fragment gains 110J of kinetic energy from the explosion, how much kinetic energy does the lighter one gain?

How is potential energy converted to kinetic energy and then heat? How is potential energy converted to kinetic energy and then converted to heat?

What is the difference between kinetic energy and temperature? On my chemistry homework, I was asked to define temperature for which I wrote " the average kinetic energy of a substance; a hotter substance will vibrate more, a colder substance less." But underneath, my teacher asked what kinetic energy was. Is there a difference? I was under the impression that there wasn't, but my teacher phrased the question so that it seemed like there was. Someone please clarify :D

How do you turn elastic energy into kinetic energy? I need a way to calculate the elastic energy of a spring and a formula to find its kinetic energy as it returns to its original position after being stetched. Is there a way to find the rate (velocity) at which a spring contracts? Please show all workings, calculations, and formulas.

What is the kinetic energy in joules of a 940 lb motorcycle moving at 68 mph? By what factor will the kinetic energy change if the speed of the motorcycle is increased to 136 mph?

What is the kinetic energy of the mass when mass reaches the bottom? A 2 kg mass is moving with a speed of 1 m/s at the top of a frictionless slide that is 3 m high. What is the kinetic energy of the mass when it reaches the bottom? I believe this is the equation I'm supposed to use: KE=1/2mv2. (The second 2 is a squared). 2 things that really confuse me in this problem: the frictionless part and I don't know where to put the height. Thanks for the help!

What is the kinetic energy of the solid ball and what is the new angular speed? A solid ball of mass 2.2 kg and diameter 15 cm is rotating about its diameter at 80 rev/min. What is its kinetic energy? Answer in units of mJ. and..... If an additional 2.5 J of energy are supplied to the rotational energy, what is the new angular speed of the ball? Answer in units of rev/min.

Does this perspective on work and kinetic energy sound reasonable? If we consider the work that an individual force F does on an object over a displacement d, one of three things can happen: 1) the force does positive work on the object → the force seeks to increase the object's kinetic energy 2) the force does negative work on the object → the force seeks to decrease the object's kinetic energy 3) the force does no work on the object → the force does not seek to change the object's kinetic energy whatsoever.

What is the minimum kinetic energy on an electron traveling in crown glass to create Cerenkov Radiation? What is the minimum kinetic energy (in keV) an electron must have while traveling inside a slab of crown glass (n = 1.52) in order to create Cerenkov Radiation?

What is the maximum kinetic energy of the ball? A 1-lb rubber ball bounces down a flight of stairs, striking each step in turn and rebounding to the height of the step above. If the height of each step is 1 ft, find the coefficient of restitution. What is the maximum kinetic energy of the ball? Show the computations please... Thanks!

What is the difference between Potential Energy and Kinetic Energy? What is the difference between Potential Energy and Kinetic Energy? How are they related?

What is the average kinetic energy of a gas at zero degrees kelvin? What is the average kinetic energy of a gas at zero degrees kelvin?

What is the final kinetic energy of the cart? A horizontal force of 200 N is applied to move a 55-kg cart (initially at rest) across a 10 m level surface. What is the final kinetic energy of the cart?

What is the kinetic energy of the Earth because of the sun? Calculate the kinetic energy that the earth has because of its motion around the sun. Assume that the earth is a uniform sphere and that its path around the sun is circular. For comparison, the total energy used in the United States in one year is about 9.33 109 J ____J

How do you find the maximum kinetic energy of a single electron? How do you find the maximum kinetic energy of a single electron when you only know the mass and velocity of the ejected electron as well as the frequency of the incident light? How the do you find the energy required to eject the electrons with only this information?

How do you get a kinetic energy in joules and calories? Like if your given a molar mass and temperature, what formula can you use so you can get values of the kinetic energy into joules and calories. The only formula I can think of is root((3RT)/M) but that gives meters per second.

How much matter and antimatter must be converted to kinetic energy for this to occur? The energy to accelerate a starship comes from combining matter and antimatter. When this is done the total rest energy of the matter and antimatter is converted to other forms of energy. Suppose a starship with a mass of 2.5x10^5 kg accelerates to 0.5380c. How much matter and antimatter must be converted to kinetic energy for this to occur? the answer is 4.7 x 10^4

How much kinetic energy is released in this explosion? A 6.0kg object, initially at rest in free space, "explodes" into three segments of equal mass.Two of these segments are observed to be moving with equal speeds of 20 m/s with an angle of 60 degrees between their direction of motion. How much kinetic energy is released in this explosion?

When the kinetic energy of an object is doubled, what happens to its momentum? When the kinetic energy of an object is doubled, what happens to its momentum?

How do I find the average kinetic energy of an atoms at temp 5700K? The surface of a star consists mostly of hydrogen atoms (not molecules) at a temperature of 5700 K. What are the average translational kinetic energy per atom and the rms speed of the atoms?

What is the ratio of the kinetic energy? The pendulum bobs are made of soft clay so that they stick together after impact. The mass of bob A is half that of bob B. Bob B is initially at rest. What is the ratio of the kinetic energy of the combined bobs, just after impact, to the kinetic energy of bob A just before impact?

How is the internal mass structure associated with Kinetic energy when the mass is started moving? Is mass increased or decreased. If mass increases it must gain it from outside influence in other words, mass gain is not intrinsic. Or if there is mass loss, it is intrinsic.Than what happens to kinetic energy and potential energy? 2nd law of thermodynamics. say you get nothing for nothing.in oder to get somthing to move you have to pay some Price? the price of gasoline is indeed high.

What would a comparison of work and kinetic energy be? We had to build mousetrap cars and we have to explain the comparison between the calculated amount of work done to set the trap and the kinetic energy of the car. Is it that if our cars were 100% efficient the kinetic energy would be equal to the amount of work done?

What is the average kinetic energy of a molecule of oxygen at a temperature of 310 K? What is the average kinetic energy of a molecule of oxygen at a temperature of 310 K? ___J

How can I explain Kinetic Energy to Kids? Can anyone come up with some interesting ways to explain "Kinetic Energy" to a group of grade 1-3 students?

How do you calculate kinetic energy? Okay, so this is the problem. The potential energy of a swing is 200 J at its highest point and 50 J at its lowest point. If mechanical energy is conserved, what is the kinetic energy of a swing at its lowest point?

How many units of kinetic energy does the same car have at 20 mph? The kinetic energy of a moving object varies directly with the square of its velocity. A car moving at 60 mph has a kinetic energy of 180

What happens to the kinetic energy of a golf ball when it hits the sand? ok, I was given a Chem problem and told to find the kinetic energy of a 45g golf ball moving at 61m/s and I calculated that it had 84J (or 20cal) of kinetic energy. I was then asked what happened to this energy when the ball lands in the sand and the answer I was given was that the energy would be transfered from the ball to the sand thus causing the sand where the ball landed to change in shape. Now, what I don't get is was it the energy from the ball or simply the ball's mass that caused the sand to change shape?

How much kinetic energy has the skater lost? A 45.0 kg skater is skating at a speed of 12.0 m/s. The skater coasts to a speed of 6.00 m/s. How much kinetic energy has the skater lost?

By what factor will the kinetic energy change if the speed of the motorcycle is increased to 108 mph? By what factor will the kinetic energy change if the speed of the motorcycle is increased to 108 mph? KEnew=____KEold

Gravitational potential energy and Kinetic energy with regards to orbits? When a spacecraft is in orbit around a star, how does the balance of gravitational potential energy and kinetic energy change? Ohh, and would the total energy of the spacecraft ever change? Any help would be appreciated!

What is the speed of a particle whose kinetic energy is equal to its rest energy? and.....What is the speed of a particle whose kinetic energy is equal to five times its rest energy?

How much kinetic energy does an object with a mass of 500g traveling in a straight line with a speed of 50m/s? How much kinetic energy does an object with a mass of 500g traveling in a straight line with a speed of 50m/s possess?

What items do i have to buy in order to make kinetic energy to power up stuff? Hey, What kind of equipment do i need to make kinetic energy and when i make it, what do i have to buy it store it or to be able to use it for other stuff? Like a bycicle to make the energy and a battery to keep/use energy? what would be the names of such products and where could i buy them? Please show me links Thank you in advanced hey israel, do you know anything cheaper than that? does anybody know anything cheaper than what Israel showed me..

Is light just the kinetic energy of photons? What other "types" of energy are actually kinetic energy? "Anything with mass that is moving has kinetic energy." Then doesn't the relativity of velocity extend to kinetic energy? Velocity is meaningless without a reference point, and for that matter, mass is too, isn't it? I guess I just don't understand the "rest" versions of physical quantities in the first place.

How do you find the total kinetic energy of a system? "Three objects move with a velocity of 5m/s. One has a mass of 1kg and moves to the north. Another has a mass of 7kg and moves to the east. The last one ha a mass of 10kg and moves to the west. What is the total kinetic energy of the system?" How would I go about solving this? Do I treat each object as a vector?

what is the kinetic energy of a 1500 kg car traveling at a speed of 30 m/s? From what height would the car have to be dropped to have this same amount of kinetic energy just b4 impact? Does the answer depend on the car's mass?

Is a weight lifter lifting weights converting his work into kinetic energy? Is a weight lifter lifting weights converting his work into kinetic energy? If a hand is swinging a string with a ball attached to the end, is the string doing work on the ball? Is the work done by a mountain climber's weight force (weight x distance he climbed along the slope)? Is a bullet going in the negative x coordinate direction -1/2mv^2 and a bullet going in the positive x coordinate direction +1/2mv^2 ?

Can a ride with no kinetic energy pass over a hill with momentum? If a ride such as kingda ka (look up on youtube), has kinetic energy which decreases as it reaches the top and gravitational potential energy that is increasing as it goes climbs a greater height, if by the time it reaches the top, can it still pass over by just momentum? Or is kinetic energy needed to fully pass over the top.

Which of the following will increase the maximum kinetic energy of the photoelectrons? In a photoelectric-effect experiment, which of the following will increase the maximum kinetic energy of the photoelectrons; a) Use light of greater intensity; b) use light of higher frequency; c) use light of longer wavelength; d) use a metal surface with a larger work function. In each case justify your answer.

Compare and contrast kinetic and potential energy. Does a person standing motionless in the aisle of a moving? Compare and contrast kinetic and potential energy. Does a person standing motionless in the aisle of a moving bus have kinetic energy? Explain

How do you find the kinetic energy of a gun? How do you find the kinetic energy of a 27 kg gun that has just fired a 52.2g bullet with a velocity of 317 m/s. If the momentum of the bullet is 16.547 kg*m/s shouldt the momentum of the gun be the same?

What will be the temprature f an object if the kinetic energy of the atmos and molecule becomes zero? Just imagine if you are able to decrease the temprature to such an extent that the kinetic energy of atoms becomes zero.

If a ball is sitting on the ground, does it have no potential energy and high kinetic energy? If a ball is sitting on the ground, would it have no potential energy, maximum potential energy, or something else? Would it have no kinetic energy or maximum kinetic energy? I'm assuming it has none of both because it's just sitting there stationary.

Is it possible to have a kinetic to kinetic energy transformation? I'm doing a Rube Goldberg project in science, and we have to have 5 energy transformations (i.e. potential-kinetic, heat-kinetic, etc.). My actual machine is already finished after much hard work, so you can understand my frustrations when I say I have 4/5 energy transformations. So...is it considered an energy transformation to have one moving object hit another object and make it move? Thanks!!

What machinery do you physically need to convert kinetic energy to electrical energy and store it? I'd like to build a larger scale replica of a self-winding watch, although most self-winding watches use springs. There are newer ones that store the kinetic energy from the weight in the watch as electric energy in an accumulator instead of just winding a spring. What materials/set-up would I need?

How do you calculate mass if you have the kinetic energy and velocity? What's the formula to get the mass of kinetic energy if they give you the velocity and kinetic energy? velocity:0.5m/s kenetic energy:10joule mass:??? i thought of getting half the KE divided by the velocity and squared it, but it didn't work.then i divided the answer by half also but it was wrong.i've tried other formulas but they were all wrong (o.0 i really need help pls.)(thanxs 2 every1 who helps^_^)

What are the effects of kinetic energy? I'm taking a driving course and one of my chapters is about driving and laws of nature. One of my questions asks for effects of kinetic energy. Can anyone help?

How do you find the kinetic energy lost in this problem? A 76g particle moving with an initial speed of 150 m/s in the positive x direction strikes and sticks to an 80g particle moving with 72 m/s in the positive y direction. How much kinetic energy is lost in this collision? Answer in units of J.

What are possible reasons for any difference between the work done and kinetic energy? I'm doing this lab and it first asked me "What is the percent difference between the maximum kinetic energy and the work done?" and I already got the answer which is 23.3% but the next question says "What are possible reasons for any difference?".

What are the steps involved in figuring out the kinetic energy of a moving object? What is the kinetic energy om joules of a 950-lb motorcycle moving at 68 mph?