Power Generated by 2.5x10^10cc of Rain Falling 1000m in 1 Hour

[bnelson]

A quantity of water equal to 2.5 x 1010 cc falls from a rain cloud that is
1000 m high. If this rain falls in just 1 hour, how much power is generated?

 

[Doc Al]

First figure out how much kinetic energy the water has when it reaches the ground.