[填空题]
Model a figure skater’s body as a sol qh(nk(c kto7qp+q/o0sbx af(qpi sm()fu ,8/id cylinder and he: )fv(bd3ce*m3e bdzmr arms as thin rods, making reasonable estimates for the dimensions. Then calculate the ratio of the angular speeds for:3*zdvcefbd m 3)em(b a spinning skater with outstretched arms, and with arms held tightly against her body.
Post time 2025-2-18 20:00:22
