2 per kilowatt-hour, how much do the following events cost? (a) To burn a 120-W lightbulb for 24 h. $ (b) To operate an electric oven for 3.2 h if i
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If electrical energy costs $0.12 per kilowatt-hour, how much do the following events cost?
$
(b) To operate an electric oven for 3.2 h if it carries a current of 20.0 A at 220 V.
$
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