[填空题]
A grinding wheel is pbmr s, dq-e:4x7lo7 tmf0e tam m5wzaz(: u:dge1+6 ya uniform cylinder with a radius of 8.50 cm and a mass of 0.580 d(g1e:y0 +6at:mm5 zmea fwzukg. Calculate (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
