The fluid inside the hydraulic jack has a pressure of 30,000 Pa. If the surface of the piston that is used to lift an object is 0.1 m’in area, how much weight can
the jack lift?​

A12-g wad of sticky clay is hurled horizontally at a 100-g wooden block initially at rest on a horizontal surface. the clay sticks to the block. after impact, the block slides 7.5 m before coming to rest. if the coefficient of friction between the block and the surface is 0.65, what was the speed of the clay immediately before the impact?