A ball is thrown straight upward with a speed v from a height h(m) above the ground. Show that time taken for the ball to strike the ground is t=v/g(1+root(1+2hg/v^2)

Which configuration would produce an electric current? a) rotate a coil of copper wire between two magnets. b) connect a wire between a copper and zinc strip sitting in a beaker of water. c) connect a wire to the (+) positive end of a battery and the other end to a light bulb. d) connect a wire to the negative end of a battery and the other end to a light bulb.

The mass of a bowling ball is 10 kg and the mass of a ping pong ball is 0.015 kg. if the two objects are 5 meters apart, what is the gravitational force ?

While the change in blank will remain the same during a collision, the force needed to bring an object to a stop can be blank if the time if collision is blank