(1 point) Water in a cylinder of height 11 ft and radius 2 ft is to be pumped out. The density of water is 62.4 lb/ft. Find the work required if (a) The tank is full of water and the water is to be pumped over the top of the tank. Work = (include units) (b) The tank is full of water and the water must be pumped to a height 5 ft above the top of the tank. Work = (include units) (c) The depth of water in the tank is 7 ft and the water must be pumped over the top of the tank. Work = (include units) Note: You can earn partial credit on this problem.