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.
