[填空题]
A grinding wheel is bx(7v(rd 2zd la u6i1+aa1)ti a mhew3.bwq wu7 avmj0 3uniform cylinder with a radius of 8.50 cm and a mass of 0.580 kg. Calcu3t h7aiw)a.qai 3mj wm+ w10beuuv16 alate (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
