[填空题]
Model a figure skater’: 0oiuv* ipor07 nvka(s body as a solid cylinder y; 7 nbhv4nt oqos+5s3and her arms as thin rods, making reasonable estimates forv3 s;4osn n5+hoq7tby the dimensions. 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
