[填空题]
A centrifuge rotor rotating 1 wt9:z)avxiuat 10,300 rpm is shupsrtbwl3:.d 1:cz5 vat off and is eventually brought uniformly to rest by a frictional trw1.5lc z :p:vsbd3atorque 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
Post time 2025-2-18 20:00:22
