[填空题]
A centrifuge rotor rofrto/a*2ncg tz) u. wf (-t3ylw 9*hv:c;7b2xlzf elq-r:kt p/sxb/ otating at 10,300 rpm is shut off and is eventually brought uniformly to re:7c2 b bf;* qv:rxl/k wz-ts/ elpx9hlst 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
