Problem: A circular swimming pool has a diameter of 12 m, the sides are 4 m high, and the depth of the water is 3 m. The acceleration due to gravity is 9.8 m/s2 and the density of water is 1000 "kg"/"m"^3.
A- How much work (in Joules) is required to pump all of the water over the side?
Express your knowledge to solve the above problem. Thanks.