In the rush to get ready for lecture, a physics professor leaves the hair dryer described in the previous problem running and does not turn it off until he gets home 6.1 hours later. how much will this add, in dollars, to his next electric bill (assume electricity costs $0.078 per kilowatt-hr) ?
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Home » Business » In the rush to get ready for lecture, a physics professor leaves the hair dryer described in the previous problem running and does not turn it off until he gets home 6.1 hours later.