[填空题]
A grinding wheel is a unifymd /mm9 0w7zhck- 4flor3*i.j 7xhqqerzx,9/ .rzc npxt3w m(zm cylinder with a radius of 8.50 cm and a mass of 0.580 kg. Calcurh/c wmqzp 9ex3.x*qnzti, r.(7z j 3xlate (a) its moment of inertia about its center, $\approx$ $kg \cdot m^2$ (b) the applied torque needed to accelerate it from rest to 1500 rpm in 5.00 s if it is known to slow down from 1500 rpm to rest in 55.0 s。 $m \cdot N$
Post time 2025-2-18 20:00:22
