[填空题]
Model a figure skater’s body as a s uw)uvzk xp*(9+gcr8m:5 myom olid cylinde4 rnud.4k :i.+mqalqar and her arms as thin rods, making reasonable estimates for tkanqd : .aq4r. ilu4m+he 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
