Two students are standing on a fire escape, one twice as high as the other. simultaneously, each drops a ball.
if the first ball strikes the ground at time t , when will the second ball strike the ground?

If forces acting on an object are unbalanced, which factors may result fron an unbalanced force? check all that apply

There are two routes similar in terrain; however, one route has an incline of approximately 28 degrees, and you must decide on which route to take. what is the maximum road grade that your fully loaded ecv can climb?

Why is the energy that results from a roller coaster's position at the top of a hill referred to as potential energy?