[填空题]
Model a figure skater’s body 8:0)6y ho /bu fqsgrxoas a solid cyl rln pe94j0a naxfpf) 3v4s.g-inder and her arms as thin rods, making reasonable estimates for the dimensio9 sg-xr pa)0npa34jf.v nfl e4ns. 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
