[填空题]
Model a figure skater’ +mszdab4s+v 3h-ca 6js body as a solid cylinder and hi.pc -0yyazfzt 6-v7jer arms as thin rods, making reasonable estimates for the dimensions. Then calculate the ratio of the angular speeds for a spinning skater with outstretched arms, and with arm y.ipc-7f-v0z6yz j tas held tightly against her body.
Post time 2025-2-18 20:00:22
