A) a 10kg post driver is moving at 2m/s just before it hits the fence post. calculate the kinetic energy (KE) stored in the moving post driver. b) how much gpe was the post driver storing just before it was dropped? explain your answer.
c) calculate the height from which this post driver was dropped onto the post

The diagram shows a person using a piece of gym equipment to lift weight which best describe the body in terms of simple machine

Two identical small charged spheres are a certain distance apart, and each one initially experiences an electrostatic force of magnitude f due to the other. with time, charge gradually leaks off of both spheres. when each of the spheres has lost half its initial charge, the magnitude of the electrostatic force will be

Explain in physical terms how a microwave oven works. what would happen when you put a conductor in the microwave oven? explain.