[填空题]
Model a figure skater’9q2f4b to7or qshgqd-v 8 s7iq wvoj 311gq76qo body as a solid cylinder and her arms as thin rods, making reasonable estimates for the dimensions. Then calculate the ratio of the angular speeds for a spinning skad qqhg86vs7g-7vw1qj3ooi q1ter with outstretched arms, and with arms held tightly against her body.
Post time 2025-2-18 20:00:22
