[填空题]
Model a figure skater’s bodj/t9rvkq8 -2rvh zz p9y as a solid cylinder and her amk:ejv:p 1 ks uu,9)k;ut eq9rrms as thin rods, making reasonable estimates for the dimensions. Then calculate the ratio of the angular speeds for a spinning skater withkte9 s:v:ekup ;,q 9)umj1kru outstretched arms, and with arms held tightly against her body.
Post time 2025-2-18 20:00:22
