A microwave oven has a power requirement of 1,251 W. A frozen dinner requires 6.8 min to heat on full power. (a) How much electrical energy (in kWh) is used? kWh (b) If the cost of electricity is 14¢ per kWh, how much does it cost to heat the dinner? (Do not round your final answer. Fractional cent values are acceptable.)
A microwave oven has a power requirement of 1,251 W. A frozen dinner requires 6.8 min to heat on full power. (a) How much electrical energy (in kWh) is used? kWh (b) If the cost of electricity is 14¢ per kWh, how much does it cost to heat the dinner? (Do not round your final answer. Fractional cent values are acceptable.)
College Physics
10th Edition
ISBN:9781285737027
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Introduction
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Problem 20P: A certain car has a fuel efficiency of 25.0 miles per gallon (mi/gal). Express this efficiency in...
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A microwave oven has a power requirement of 1,251 W. A frozen dinner requires 6.8 min to heat on full power.
(a) How much electrical energy (in kWh) is used?
kWh
(b) If the cost of electricity is 14¢ per kWh, how much does it cost to heat the dinner? (Do not round your final answer. Fractional cent values are acceptable.)
kWh
(b) If the cost of electricity is 14¢ per kWh, how much does it cost to heat the dinner? (Do not round your final answer. Fractional cent values are acceptable.)
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