[填空题]
Model a figure skater’s crwu- 9wrn7d1bodd-xirc dmue.*9r, , vdy as 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 skater with outstretch,c .ruvrd-m, did*ex9 ed arms, and with arms held tightly against her body.
Post time 2025-2-18 20:00:22
