[填空题]
A centrifuge rotor rotating ateu+vnjxja8/7d)r- w ca- jph*o+dvc)uz*;c *inf * lxr(;hgc10,300 rpm is shut off and is eventually brought uniformly to rest b i*(c;zh*fl;+)xngvr*oc ud c y 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
Post time 2025-2-18 20:00:22
