help Make an order-of-magnitude estimate of the number of revolutions through wh

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Make an order-of-magnitude estimate of the number of revolutions through which a typical automobile tire turns in one year. (Assume the automobile travels 12 500 miles each year on tires with radius 0.245 m.) revolutions Need Help? Find the net torque on the wheel in the figure below about the axle through O, taking a = 7.00 cm and b = 25.0 cm. (Assume that the positive direction is counterclockwise.) N middot m Need Help? A cylinder of mass 14.0 kg rolls without slipping on a horizontal surface. At a certain instant its center of mass has a speed of 9.0 m/s. Determine the translational kinetic energy of its center of mass. J Determine the rotational kinetic energy about its center of mass. J Determine its total energy. J

Explanation / Answer

velovity=12500 miles per year=12500*1609.3 m/year

==> number of revolution in an year=12500*1609.3/(2*3.14*0.245)=13074385.8 revolutions

2) torque= 10*b+9*b-12*a

==> Torque= 19*0.25-12*0.07=3.91 N-m

3) please rate better to get the third answer

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