[填空题]
A grinding wheel is a uniform cylinder with a radi*e698(iuwbr 00nuxi y9 qj iflus of 8.50 cm and a mass of 0.f(b8q6*nul 9ii0wu0rj y9xi e iemwa.qj)m7hn3 qfu73bqtn+ 0;hr b 8580 kg. Calcula0 3+.f eumw73qhqijn8bbqma t; nhr )7te (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
