1. The problem statement, all variables and given/known data A tank in the form of a hemispherical bowl of radius 4 m is full of water. Find the work required to pump all of the water to a point 2 m above the tank. 2. Relevant equations w = fd = mgd density = 1000L/m2 1L = 1kg 3. The attempt at a solution x = height w = V*d*g*h = (π)(r^2)(x)*(1000)*(9.8)*(x)*dx I think my problem is trying to show how the height a strip of cylinder varies with the radius. I've tried using similar triangles but it was obviously incorrect. Is there a similar property I can use for hemispheres?