Help again! Thank you all xoxo

Find the momentum for a 2.6-kg brick parachuting straight downward at a constant speed of 8.4 m/s .

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

According to newtons universal law of gravitation, which would change the parh of the ball so it traces out widest curved path possible?