[填空题]
Model a figure skater’s body as a)5(crbr8p7 nctme; v k solid cylizxb qdw -s6/-gnder and her arms as thin rods, making reasonable estimates for the dimensions. Then calculate the ratio of the angular speeds for a spinning skater with outsq- xbs gzd6-w/tretched arms, and with arms held tightly against her body.
Post time 2025-2-18 20:00:22
