[填空题]
A centrifuge rotor rotating ai hc.psue 8 gqllve)w.9dh1 )4t 1t,pd1 ,vscj9u hx7 io/0,300 rpm is shut off and is eventually brought uniformly to rest d,i cotuv/7p , h19sjxby 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
