A soccer player exerts a force of 200 N to kick a 0.5 kg soccer ball. He applies the force for how long if the ball’s change in momentum is 40.0 kg * m/s?

Does heating a metal wire increase or decrease its electrical resistance? why?

Astudent pushes a 60-n block across the floor for a distance of 10 m. how much work was done to move the block

In a game of pool, ball a is moving with a velocity v0 of magnitude v0 = 15 ft/s when it strikes balls b and c, which are at rest and aligned as shown. knowing that after the collision the three balls move in the directions indicated and assuming frictionless surfaces and perfectly elastic impact (that is, conservation of energy), determine the magnitudes of the velocities va, vb, and vc.