[填空题]
A centrifuge rotor rotating at 10,30cl-2 m-zn ztyhd,eijm*6 jf3;0 rpm is shut off and is eventua m/q) ywfxpd1f-.mm4 ,9kmqzklly brought uniformly to restm zf,4k/qk1 dm. qy)9fxwm-mp 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
Post time 2025-2-18 20:00:22
