⦁ Frank is 5 feet tall and Jack is 6.5 feet tall. If they both lift identical weights above their heads, who did the greatest amount of work?

An athlete is holding 24 lb of weights at a height of 6 inches above the stack as shown. to lower the weights, she applies a constant force of 5 lb to the handle. determine the velocity of the weights immediately before they hit the stack.

The protons in a nucleus are approximately 2 ✕ 10^−15 m apart. consider the case where the protons are a distance d = 1.93 ✕ 10^−15 m apart. calculate the magnitude of the electric force (in n) between two protons at this distance.

Which of the following are forms of phase changes a. freezing b. condensation c. heating d. exchanging