A 2.5 kg ball rolls forward at 10.0 m/s. What is the ball's momentum?

Suppose you use a machine that gives you a mechanical advantage of 2 to achieve an output force of 30newtons what must the input force be

The diagram shows a series of volcanic island and a hot spot determine the direction of movement of the tectonic plate that for the island

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 %.