If electrical energy costs 12 cents, or $0.12, per kilowatt-hour, how much does it cost to (a)

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If electrical energy costs 12 cents, or $0.12, per kilowatt-hour, how much does it cost to
(a) Burn a 100-W lightbulb for 24 h?
(b) Operate an electric oven for 5.0 h if it carries a current of 20.0 A at 220 V?

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College Physics

ISBN: 978-0495113690

7th Edition

Authors: Raymond A. Serway, Jerry S. Faughn, Chris Vuille, Charles A. Bennett

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Question Posted: Nov 01, 2011 02:48 PM

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If electrical energy costs 12 cents, or $0.12, per kilowatt-hour, how much does it cost to (a)

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a The energy used by a 100W bulb in 24 h is b The energy ...View the full answer

College Physics

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