A 100 kg skier waits at the top of a 300 m high hill to ski down the hill. The skier's gravitational potential energy is _Joules A) 30,000J
B) 294,000J
C) 3000J
D) 3061 J

The diagram shows four locations in the electric field of a positive point charge m. at which location is the electric potential the greatest.

The diagram shows a boulder rolling down a hill into a valley and then up the opposite hill. at which position does the boulder have the greatest kinetic energy? ab c d

A55-kg pilot flies a jet trainer in a half vertical loop of 1200-m radius so that the speed of the trainer decreases at a constant rate. knowing that the plane has a speed of 550 km/h at point a, and the pilot experiences weightlessness at point c (i.e., the normal force from the seat bottom is zero), determine (a) the deceleration of the plane, (b) the force exerted on her by the seat of the trainer when the trainer is at point b.