You do 174 J of work while pulling your sister back on a swing, whose chain is 5.10 m long, until the swing makes an angle of 32.0° with the vertical. What is your sister's mass?

An object with a mass of 2.0 kg accelerates 2.0 m/s2 when an unknown force is applied to it. What is the amount of the force?

At the particle level, the weakest of the fundamental forces is: gravity electromagnetic forces strong force weak force

How did world cup soccer become cool?

A train moving near the speed of light enters a tunnel. According to a person standing in the middle of the tunnel, the back end of the train enters the tunnel just as the front end is emerging.

How long does a radar signal take to travel from earth to venus and back when venus is brightest?

The muscles of a runner transform chemical potential energy into what?

Compare how your weight, mass, and the normal force exerted by the floor change when you are in an elevator that starts from rest and accelerates upward.

When experiencing loss in your life, you are likely to experience grief, but not stress True or False

What is the specific heat of wood?

A certain wave motion has a frequency of 10 cycles / s and a wavelength of 3 m. so its propagation speed is