[填空题]
Model a figure skater’s bodykg. ib 2(lrx,v tpfe v ys(-1s.:c;9o d6qillpas a solid cylinder and her arms as thin rods, making reasonable estimates for the dimensions. Then calculate the ratio of the angular speeds for a spinning skt:qypdi s flo(9.6;s v1eclp -ater with outstretched arms, and with arms held tightly against her body.
Post time 2025-2-18 20:00:22
