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A centrifuge rotor ry;vjy3s sj,m4m,2b pk 3t59 l*-f.j(ot eog o1glaaci otating at 10,300 rpm is shut off and is eventually brought uniformly to ri5taf1.9 *atcel o lg (oj-og3est by a frictional torque of 1.2 $m \cdot N$ If the mass of the rotor is 4.80 kg and it can be approximated as a solid cylinder of radius 0.0710 m, through how many revolutions will the rotor turn before coming to rest, $rev$ how long will it take? s