[填空题]
A centrifuge rotor rotating at5xsz-* rl *aq3p-e)pq(wi tmsz,ea *q 10,30y(j :k*r g.ync:pj2fp+f(z :q dcfu(v0 rpm is shut off and is eventually brought uniformly tfr*gzp: ((jp cf kq.c ndy:y+ (fv2:ujo rest 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
