[填空题]
Model a figure skater’stn xomi2.w3rjaw 111b body as a solid cylkyueu0zzn3 a (z) ze,w71hb+pinder and her arms as thin rods, making reasonable estimates for the dimensions. Then calculate the ratio of the a0uazbu7p wz1kh+)(ezn y,ez 3 ngular speeds for a spinning skater with outstretched arms, and with arms held tightly against her body.
Post time 2025-2-18 20:00:22
