1) A tank is in the shape of a right circular cylinder with a base radius of 3 m and a height of 3 m. The tank is filled completely with a liquid whose mass density is 500 Kg/m^3. How much work is done to pump all of the liquid out of the tank? a= 9.8 m/s^2

2) A thin plate is submerged vertically in a tank of water. The plate is in the shape of an isosceles triangle whose base, which is 3 feet long, is located at the surface of the water. If the triangle has an altitude of 3 feet, what is the hydrostatic force that is being applied to the plate? weight density of water is 62.5 lb/ft^3