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College Physics

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On average, an electric water heater operates for 3.4h each day.
If the cost of electricity is $0.3 kWh, what is the cost of operating the heater during a 30-day month? The power of a typical electric water heater is 4500 W.
Cost= Dollars

What is the resistance of a typical water heater? The current requirements of a typical electric water heater is 37.5 A.

R = ohms

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