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Physics, 09.01.2020 06:31 mari200150

At certain times the demand for electric energy is low and electric energy is used to pump water to a reservoir 45 m above the ground and then used to drive turbines during high demand periods. if this process is 70.0% efficient, how much water must be raised to produce 150 mw of power for 3 hours?

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At certain times the demand for electric energy is low and electric energy is used to pump water to...

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