[填空题]
A centrifuge rotor rotating at 10,300 rpk ;ffllrfp,o,lj4 o8. m is sh:ru;5a1ol bl out off and is eventually brought uniformly to rest by a frictional to oo;bar51u:ll rque 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
