A 10 000 kg airplane lands, descending a vertical distance of 10 km while traveling 100 km measured along the ground. What is the plane's loss of
potential energy?*

When you push downward on a book at rest on a table, you feel an upward force. does this force depend on friction? defend your answer.

Current from a charged capacitor lights a bulb. as time goes on the brightness of the

Ben (55kg) is standing on very slippery ice when junior (25kg) bumps into him. junior was moving at a speed of 8 m/s before the collision and ben and junior embrace after the collision. find the speed of ben and junior as they move across the ice after the collision. give the answer in m/s. describe the work you did to get the answer.