[填空题]
Model a figure skater’s body as a sol0l. u81tw1 x ga3k8mqsxt ivn*ujc5*gid cykq(n.e:j4ha,t ia z8 wlinder and her arms as thin rods, making reasonable estimatkh(iqna4jt, e :wa.8 zes for the dimensions. Then calculate the ratio of the angular speeds for a spinning skater with outstretched arms, and with arms held tightly against her body.
Post time 2025-2-18 20:00:22
