[填空题]
Model a figure skater’s -isn n; e0cw0iow(,gg body as a solid cylinder and her arms aak r ;6cm1g+rss thin rods, making reasonable estimates for the dimensions. Then calculate the ratio of t rsc1rk;a6 +mghe 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
