What is the gravitational attraction between the Earth and the Moon? The Earth has a mass of 5.97 x 1024 kg, while the moon
has a mass of 7.36 x 1022 kg. The average distance between
them is 384,400 km. Estimate G as 6.67 * 10" N (m/kg)

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