After a hot shower and dishwashing, there seems to be nohot water left in the 65-gal (245-L) water heater. This suggeststhat the tank has emptied and refilled with water at roughly10°C. (a) How much energy does it take to reheat the waterto 45°C? (b) How long would it take if the heater outputis 9500 W?
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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
10°C. (a) How much energy does it take to reheat the water
to 45°C? (b) How long would it take if the heater output
is 9500 W?
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