Erica throws a tennis ball against a wall, and it bounces back. which force is responsible for sending the ball back to erica?

a) the force that the ball exerts on the wall

b) the frictional force between the wall and the ball

c) the acceleration of the ball as it approaches the wall

d) the normal force that the wall exerts on the ball

An electric current in a wire will push or pull on a permanent magnet. which statement best explains how an electric current creates an electromagnetic force on another magnet?

A17,250 kg rocket is pushed with a thrust of 6,450,284 n. what is the acceleration of the rocket?

An insulated 40 ft^3 rigid tank contains air at 50 psia and 120°f. a valve connected to the tank is now opened, and air is allowed to escape until the pressure inside drops to 25 psia. the air temperature during this process is kept constant by an electric resistance heater placed in the tank. determine the electrical work done during this process.