A tank has the shape of an inverted circular cone with height 15 m and base radius 2 m. The tank is filled with water to a height of 4 m. Find the work required to empty the tank by pumping all of the water over the top of the tank. Use the fact that acceleration due to gravity is 9.8 m/sec² and the density of water is 1000 kg/m³. Round your answer to the nearest kilojoule. Provide your answer below:

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