[填空题]
Model a figure skater’s body as a *+tv nj nfuuoa)vvh+7u2a:m/ solid cylinder and her armd)v. 0bit 5sowb9pr n;s as thin rods, making reasonable estimates for the dimensions. Then calculate the ratio of the angular speeds for aoi.bv st 0nb5; rw)pd9 spinning skater with outstretched arms, and with arms held tightly against her body.
Post time 2025-2-18 20:00:22
