cost=rate*time*power
in the first, cnvert hp to kwatts
in the second, convert W to kw.
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?
1 answer