Physics, 07.09.2021 22:30 lil8174

A coin is dropped from a height above the ground. Which three statements are correct? -If you double the height that you drop the coin from, you double the gravitational potential energy.
-You would have to drop it from a height that is nine times bigger to treble the speed when it hits the floor.
-If you double the height that you drop the coin from, you quadruple the gravitational potential energy.
-If you double the height that you drop a coin from, you double the speed at which it hits the floor.
-If you quadruple the height that you drop a coin from, you double the speed at which it hits the floor.

Answers: 3

Show answers

Another question on Physics

Physics, 21.06.2019 15:40

Rosa records the distance that a toy car rolls and the time it takes to cover the distance. what scientific practice is this? collecting data asking a question providing explanations communicating results

Answers: 3

Answer

Physics, 21.06.2019 15:40

Arock is dropped from a cliff and reaches the ground in 2.70s. at the same time another rock is thrown horizontally from the same height with initial x velocity of 0.95 m/s. what distance will in x will the second rock cover?

Answers: 1

Answer

Physics, 22.06.2019 08:40

Apulley system is used to lift a 2,000 newton engine up a distance of 3 meters. the operator must apply a force of 250 newtons to the chain of the pulley system to lift the motor. to lift the engine 3 meters, the operator must pull a total of 30 meters of chain through the pulley system. what is the value of di?

Answers: 1

Answer

Physics, 22.06.2019 22:00

Aparticle of mass m is placed in a one-dimensional box of length l. the box is so small that the particle’s motion is relativistic, so that e p2/2m is not valid. (a) derive an expression for the energy levels of the particle using the relativistic energy–momentum relation and the quantization of momentum that derives from connement. (b) if the particle is an electron in a box of length l 1.00 1012 m, nd its lowest possible kinetic energy. by what percent is the nonrelativistic formula for the energy in error?

Answers: 1

Answer

You know the right answer?

A coin is dropped from a height above the ground. Which three statements are correct? -If you doub...

Questions