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?

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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