[填空题]
Model a figure skateeo/+i1k 5,l,via nb bkr’s body as a s j vhmxrw6p88(olid cylinder and her arms as thin rods, making reasox88hj v6w(p mrnable estimates for the dimensions. Then calculate the ratio of the angular speeds for a spinning skater with outstretched arms, and with arms held tightly against her body.
Post time 2025-2-18 20:00:22
