A microwave oven has a power requirement of 1,263 W. A frozen dinner requires 5.8 min to heat on full power. (a) How much electrical energy (in kWh) is used? (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 1,263 W. A frozen dinner requires 5.8 min to heat on full power. (a) How much electrical energy (in kWh) is used? (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

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 24P: A certain car has a fuel efficiency of 25.0 miles per gallon (mi/gal). Express this efficiency in...

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