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    tirsnee's Avatar
    tirsnee Posts: 1, Reputation: 1
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    #1

    Sep 4, 2007, 10:25 PM
    Physics: Estimates and Order-of-Magnitude Calculations
    An automobile tire is rated to last for 50 000 miles. Estimate the number of revolutions the tire will make in its lifetime.
    Capuchin's Avatar
    Capuchin Posts: 5,255, Reputation: 656
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    #2

    Sep 4, 2007, 11:38 PM
    You need to make an estimate of the radius of the wheel, then divide the circumference into the 50,000 mile figure.
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