Mathematics
stephstorm
2

it takes the dryer 45 inutes to dry a load of towels. If the dryer uses 6,750,000 joules of energy to dry the towels, what is the power rating of the machine?

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(1) Answers
JamieJamieJamie

Given: 45 minutes 6,750,000 joules Power(w) = Work(j) / Time(s) Convert the time from minutes to seconds 1 minute = 60 seconds 45 minutes * 60 seconds/min = 45 * 60 seconds = 2,700 seconds w = 6,750,000 joules / 2,700 seconds w = 2,500 watts The power rating of the dryer is 2,500 watts.

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