[填空题]
Model a figure skater’s body as a solid cylinder and heyfnkcg (7g.p9 r wa4ee )a83qrjxy36fq arms as thin rods, making reasonable estimates for the dimensions. Then calculate the ratio of the angular speeds for a spinning skatq4e3a6a 8qxy jf3r)ewer with outstretched arms, and with arms held tightly against her body.
Post time 2025-2-18 20:00:22
