[填空题]
Model a figure skater’s bez 6lcjh)2i xn 5):hebody as a solid cylin85hv xppy; )/w ld6hunder and her arms as thin rods, making reasonable estimates for the dimensions. Then calculate the ratio of the angular speeds forph8)yx6luwd;hv 5n/p a spinning skater with outstretched arms, and with arms held tightly against her body.
Post time 2025-2-18 20:00:22
