A 50 kg swimmer dived from a 4m high diving board into a pool .What is the acceleration of the
carth while the swimmer is freely faling? Take the mass
of the earth as. 6 x 10^24 kg.

Apulley with a mechanical advantage of 5 will require you to pull times the amount of rope. a. 1/5 b. 5 c. 10 d. 15

Calculate the heat capacity per object when the total energy is 4 quanta. (think of this in terms of increasing from 3.5 quanta of energy in the system to 4.5 quanta of energy in the system, if that were possible.) c4 = __ j/k/object

What is the orbital period of a spacecraft in a low orbit near the surface of mars? the radius of mars is 3.4×106m.