A person in good physical condition can put out 100 W of useful power for several hours at a stretch, perhaps by pedaling a mechanism that drives an electric generator. Neglecting any problems of generator efciency and practical considerations such as resting time, answer the following. (a) How many people would it take to run a 4.00 kW electric clothes dryer? 40 / people (b) How many people would it take to replace a large electric power plant that generates 800 MW? x people