[填空题]
(a) What is the angular momentum of a 2.8-kg07g:(y1l e1 d1jsnlpn xxrn,p uniform cylindricao/xstr8hko9 a79ss c2f4ev.ql grinding wheel of ra9/essvaf8oqorx 4k. 27 t9hsc dius 18 cm when rotating at 1500 rpm? $kg \cdot m^2$ (b) How much torque is required to stop it in 6.0 s? $m \cdot N$
Post time 2025-2-18 20:00:22
