[填空题]
Model a figure skater’s body as a solid cylinder and her arms p3aw hw o1 jqa*b7 s7dhg-/n/cas thin rguh88ck-wyg6 ,0xl;ykc + r )tpstov 7ods, making reasonable estimates for the dim c-gcyl6t x ok)vu8rg0,yktw87;+s hpensions. Then calculate the ratio of the angular speeds for a spinning skater with outstretched arms, and with arms held tightly against her body.
Post time 2025-2-18 20:00:22
