[填空题]
A centrifuge rotor rovma gqouyd-. t/8i+;w tating at 10,30 sjw8lwb:qu uf +gf be-6:;ef+0 rpm is shut off and is eventually brought uniformly to rest by a frictioff+-j u:ew 6sqb + 8;gwblue:fnal 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
