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Question: a hot water tank 300 kg of liquid water at...

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A hot water tank (300 kg of liquid water at 120 °F) loses power. If you withdraw water to take a shower at a rate of 0.2 kg/s, how long before the water feels cold (say, 75 °F). Assume the water is replaced at the same rate that it is taken out, with cold water at 60 OF 1.

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