# Physics

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At 7.65 cents per kilowatt-hour, what does it cost to operate a 10.0 hp motor for 6.00 hr?

At 7.65 cents per kilowatt-hour, what does it cost to leave a 75.0 W light burning 24.0 hours a day?

• Physics -

cost=rate*time*power

in the first, cnvert hp to kwatts

in the second, convert W to kw.

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