Seema knows the mass of a basketball. what other information is needed to find the ball’s potential energy?

Ahot-air balloonist, rising vertically with a constant speed of 5.00 m/s releases a sandbag at the instant the balloon is 40.0 m above the ground. after it is released, the sandbag encounters no appreciable air drag. compute the velocity of the sandbag at 0.250 s after its release.

What is the angular momentum of the bar about the axle?

This is the number of complete movements of a wave per second.