Carter pushes a bag full of basketball jerseys across the gym floor. the he pushes with a constant force of 21 newtons. if he pushes the bag 9 meters in 3 seconds, how much power does he use? (hint: 1 watt = 1 .

What are the differences and similarities of a compression wave and a transverse wave?

If we relied solely on the nonrenewable resources found in the u.s., which one would we run out of first at current usage levels? a. natural gas b. oil c. uranium d. coal

Arailroad car collides with and sticks to an identical railroad car that is initially at rest. after the collision, the total kinetic energy of the two cars is a) the same as before. b) half as much as before. c) one third as much as before. d) one fourth as much as before. e) twice as much as before.