Which of these is a contact force? A. force of a magnet that attracts paper clips B. earth's attraction of the moon C. force that causes static cling when drying clothes D. force of a bat on a baseball

Explain how the energy of rubber ball is tranforned as it roll down a ramp. give evidence that the energy of the og the ball remains the same at all points on the ramp

True or false graphs must include scales that increase by the same amount

Two pans of a balance are 24.1 cm apart. the fulcrum of the balance has been shifted 1.33 cm away from the center by a dishonest shopkeeper. by what percentage is the true weight of the goods being marked up by the shopkeeper? assume the balance has negligible mass. answer in units of %.