Which of these represents a scenario where gravitational potential energy increases? a. A hockey puck is hit across the ice b. A rock falls from a cliff c. An elevator goes from the 4 th floor to the 10 th floor d. A bucket of water at the top of a building is poured out

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