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Posted by on Friday, September 3, 2010 at 6:35pm.

A microwave oven has a power requirement of 1235 W. A frozen dinner requires 6.0 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?

  • science - , Friday, September 3, 2010 at 11:18pm

    I have answered this already, somewhere else.

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