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Chapter 26, Problem 049 A 120 W lightbulb is plugged into a standard 120 V outlet. (a) How much does it cost in dollars per 3

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Power x hme Eneyy corgumed (a) 120 W x 31 days 120 Wx 31 × 24 houn. 89.28 kWM US $ 7.14 89.28 x 0.o8 = Awawer Cost = (20)? An

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