[填空题]
Model a figure skater’s body as a sol jl/ egry4e8/xid cylinder and her arms as thin cw2a74jo u pl qr .);wp.t*frvrods, making reasonable 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 body7j po p;24.r.lfq*a urcv)tww.
Post time 2025-2-18 20:00:22
