A 7.2 m long ramp is set at an angle of 42 degrees with the floor. An 11kg box is pushed up the ramp. What is the change in GPE of the box? (Answer is 340J, but how do you get that?)

An object with a mass of 70 kilograms is supported at a height 8 meters above the ground. what's the potential energy of the object with respect to the ground. A. 2,058 j B. 5,488 j C. 560 j D. 3,430 j

An example of an unbalanced force is

Energy can be stored in a magnetic field. True or false?

Define relative density

An atom that changes so that it has an electrical charge is a (n)

What does a fern ultimately depend on as an energy source?

According to the Doppler Effect, which statement is true about a sound as it approaches you and then moves away. A) As the source approaches you, the sound waves are compressed so the pitch of the noise increases.

If you have a beam perfectly balanced on a fulcrum and put a weight at the very end of one side, is there a way to know where you should put a heavier object on the other end?

Most of the Earth's volcanoes occuWhen fossils or minerals form, certain unstable elements are sometimes locked into them.

a man is standing on the edge of a 20.0m high cliff. he throws a rock vertically with an initial velocity of 10.0m/s. how high does the rock go?