[填空题]
Model a figure skater’s body as a solid cylindefjz ve6 li)a(o.s;s9am m;,zh rizt;:v u x3vldas f/22 and her arms as thin rods, 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 ;alzvd32isx u 2tv:f/ body.
Post time 2025-2-18 20:00:22
