Consider a cylindrical tank that has a height of 11 m and a radius of 6 m. Recall that if the tank is full of 11 water then 36xpg(15 - y)dy equals the work required to pump all the water out of the tank, through an 0 outflow pipe that is 15 m above the bottom of the tank. Revise this work integral for the following scenario. (Do not evaluate the integrals.) The work required to empty the tank through an outflow pipe at the top of the tank. If D(y) is the distance a horizontal slice must be lifted, what is D(y) when the outflow pipe is at the top of the tank? D(y) 15-y 15 W= pg 15- y dy (Type an exact answer, using x as needed. Use integers or fractions for any numbers in the expression.)