Author Question: A circus diver drops from a high pole into water far below. When he is half-way down A) his ... (Read 90 times)

elizabeth18 · **on:** Jul 29, 2018

A circus diver drops from a high pole into water far below. When he is half-way down

A) his potential energy is halved.
B) he has gained an amount of kinetic energy equal to half his initial potential energy.
C) his kinetic and potential energies are equal.
D) all of the above
E) none of the above

Question 2

A satellite is in orbit around the earth. On which one is the greater force exerted?

A) on the satellite because the earth is so much more massive
B) on the earth because the satellite has so little mass
C) Exactly the same magnitude of force is exerted on both Earth and the satellite.
D) It depends on the distance of the satellite from Earth.