A5kg ball is initially at rest at the top of a hill 10m high. if it rolls down the hill (converting all of its potential energy to kinetic energy), what is the maximum kinetic energy it could have at the bottom of the hill?

Acompound machine is also called a machine. a. force b. simple c. complex d. directional

Avertical clean glass piezometer tube has an inside diameter of d = 1 mm and is used to measure pressure in a horizontal pipe carrying water as shown. due to pressure in the pipe, the water at 20c rises into the tube to a height h. if the water pressure in the pipe is p = 500 pa gauge, estimate the height h: (a) without considering surface tension (b) with surface tension (capillary) effects. the contact angle  can be assumed at 30 deg

In the illustration, which two simple machines are being used to enable the student to reach the door? a. inclined plane and pulley b lever and wheel-and-axle c pulley and lever d wheel-and axle and inclined plane