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 efficiency and practical considerations such as resting time: (a) How many people would it take to run a 3.00 kW electric clothes dryer? реople (b) How many people would it take to replace a large electric power plant that generates 900 MW? people

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