[填空题]
Model a figure skater’s body as 0ebvjb )b7 mtk0(p+paa solid cylinder kw) zhe/.t (lyand her arms as thin rods, making reasona ./let(z )hkywble 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
