[填空题]
Model a figure skater’s body as8.a4 vmggzx(b a solid cylinder and her arney xl 8chyvmz392f . k.y:rx(ms as thin rods, making reasonable estimates for the dimensions. Then calculate the ratio of the angular speeds for a spinning skater with outstreyv x38mh2.y9z(l :yfncx .rk etched arms, and with arms held tightly against her body.
Post time 2025-2-18 20:00:22
