[填空题]
Model a figure skater’y.bjcx+q*( rev v-iq , b3az2ns body ac ojgr2mt sbew:hgxr;( c;a+u. p1(o4s a solid cylinder and her arms as thin rods, making reasonable estimates for the dimenst;g+c x :s14 gw;ur ho(om(jbcrep2a.ions. 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
