In a hydroelectric dam, water falls 30.0 m
and then spins a turbine to generate electricity.
You may want to review (Pages 234 - 238).
What is of 1.0 kg of water?
Suppose the dam is 80% efficient at converting the waters potential energy to electrical energy. How many kilograms of water must pass through the turbines each second to generate 51.0 MW of electricity? This is a typical value for a small hydroelectric dam.