[填空题]
Model a figure skater’s body as a solid cylinder a vpqs.y-drb ;0c)rr-snd her arms as thin w(ok44pgxk- r 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 ok-wp 4x 4g(krbody.
Post time 2025-2-18 20:00:22
