1. The problem statement, all variables and given/known data The hemispherical tank shown is full of water. Given that water weighs 62.5 lb/ft3, find the work required to pump the water out of the tank. (the water will be pumped out of a spigot at the top) 2. Relevant equations INTEGRAL from 0 to 5 of: pi*(5-h)(25-h^2)dh 3. The attempt at a solution INTEGRAL from 0 to 5 of: pi*(h^3-5h^2-25h+125)dh pi*((h^4)/4 - (5h^3)/3 - 12.5h^2 + 125h) = (3125/12)*pi ft-lb. This answer is incorrect though...anyone know what I am doing wrong? Thanks.