[填空题]
Model a figure skater’s 7dvwgtnj)v8 x*x+q ms9 f i:b-body as a solid cylinder and her arms as thin abufp;i ; 1jikm hb90;rods, making reasonable estimates for the dimensions. Then calculate the ratio of jim0p abb k; h1;;u9fithe 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
