[填空题]
Model a figure skater’s body as a solid cylinder and h m +s8n(cidy5u2a5buwer arms as thin rods, mac5*yd/ 3mz+tn p)e cpnking reasonable estimates for the dimensions. Then calculate theycm +pz cpnd*et/53n) 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
