[填空题]
Model a figure skater’s body as a solid cylinder and he ;xjgq:aa4 7vwr arms as tb/pam/yqiv(5(w j n2 zhin rods, making reasonable estimates for the dimensions. Then calculate the ratio of the angular speeds for a spinni (zm/ja2biwv/q5 pn(yng skater with outstretched arms, and with arms held tightly against her body.
Post time 2025-2-18 20:00:22
