A brick is suspended above the ground at a height of 6.6 m. it has a mass of 5.3 kg. what is the potential energy of the brick

If a boulder has a mass of 50 kg and a potential energy of 490 j what is the height of the boulder

What is environmental remediation?

A boxcar traveling at 12 m/s approaches a string of 5 identical boxcars sitting stationary on the track. The moving boxcar collides and links with the stationary cars and they all move off together along the track.

state some ways that erosion can happen. State how humans and animals can contribute to erosion. Give some examples of human activities that cause or speed up erosion.

Bird bones have air pockets in them to reduce their weight. This also gives them an average density significantly less than that of the bones of other animals.

If the water cycle is effective why are some areas in the world always short on water?

Low-frequency red light is used in dark rooms because it does not expose the film. This is because the red light has a low

Mark puts an object that has a mass of 58.2kg in a cart that has a mass of 73.00 kg.

two objects are in uniform circular motion at the same speed but at different radii. the ones with the __ radius has the largest centripetal acceleration.

What about a rubber band, can it change its shape? Is it a solid?