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July 29, 2015

Homework Help: science

Posted by Renee on Thursday, February 10, 2011 at 10:10pm.

A microwave oven has a power requirement of 1248 W. A frozen dinner requires 6.9 min to heat on full power.
(a) How much electrical energy (in kWh) is used?


(b) If the cost of electricity is 12 cents per kWh, how much does it cost to heat the dinner?

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