HELP! As the masses of two objects increase, how does the gravitational force between the two bodies change?
A. The gravitational force begins to repel the objects.
B. The gravitational force decreases.
C. The gravitational force stays the same.
D. The gravitational force increases.

A100 kg running back runs at 5m/s into a stationary linebacker. it takes 0.5 for the running back to be completely stopped

During the experiment if you could triple the breakaway magnetic force with all other quantities left unchanged, what is the new value for the critical velocity if it was v0 (initial velocity), initially? (b) now if you halved the radius with all other quantities left unchanged, what is the new critical velocity if it was v0 (initial velocity), initially? (c) if during the experiment, critical velocity quadrupled with all other quantities left unchanged, what is the new breakaway force if its magnitude was initially f0,?

If you put a helium-filled balloon in the refrigerator, what will happen?