Which statement best describes how the temperature of the ocean's surface water varies? a. areas with a low salinity have the coldest water b. areas close to the poles have the warmest water c. areas at high altitude have the coldest water d. areas with high density have the warmest water

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