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A fan is designed to last for a certain time before it will have to be...

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Physics

A fan is designed to last for a certain time before it will haveto be replaced (planned obsolescence). The fan only has one speed(at a maximum of 675 rpm), and it reaches the speed in 3.0 s(starting from rest). It takes the fan 7.0 s for the blade to stoponce it is turned off. The manufacturer specifies that the fan willoperate up to 1 billion rotations.

Andre lives in a hot climate, works outside of the home fromapproximately 8:00 am to 5:00 pm, Monday through Friday, does notown an air conditioner, and can't sleep with the fan running.Estimate how many hot days ? hot Andre will be able to use the fan,rounded to the nearest day.

N hot = ? days

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