A microwave oven has a power requirement of 1,239 W. A frozen dinner requires 4.4 min to heat on full power. (a) How much electrical energy (in kWh) is used? ____ kWh (b) If the cost of electricity is 15¢ 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 1,239 W. A frozen dinner requires 4.4 min to heat on full power. (a) How much electrical energy (in kWh) is used? ____ kWh (b) If the cost of electricity is 15¢ per kWh, how much does it cost to heat the dinner? (Do not round your final answer. Fractional cent values are acceptable.) ____ ¢
Chemistry
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ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
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Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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A microwave oven has a power requirement of 1,239 W. A frozen dinner requires 4.4 min to heat on full power.
(a) How much electrical energy (in kWh) is used?
____ kWh
(b) If the cost of electricity is 15¢ 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 15¢ 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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