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March 28, 2017

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A 1500 W room heater is used daily for 4 hours during winter. If the cost per kWh is $0.5, what is the monthly (30 days) expense in using the room heater?

  • Physics - ,

    1.5 kW times 4 hours (daily use) is 6 kW-hours per day. That would cost 3.00 dollars a day at $0.50 per kW-hour.

    Multriply that by 30 days in a month.

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