Two different blocks of ice sit on the level floor of a meat packing plant. Yasmeen pushes with a horizontal force of magnitude F on the first block, which has mass m, and it accelerates along the floor with acceleration magnitude a. She then pushes with horizontal force 2F on the second block, and it accelerates along the floor with acceleration magnitude 2a/3. What is the mass of the second block

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