After a hot shower and dishwashing, there seems to be no
Chapter 14, Problem 67(choose chapter or problem)
After a hot shower and dishwashing, there seems to be no hot water left in the 65-gal (245-L) water heater. This suggests that the tank has emptied and refilled with water at roughly 10C. (a) How much energy does it take to reheat the water to 45C? (b) How long would it take if the heater output is 9500 W?
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