[填空题]
Model a figure skater’s :ng)d7euk8 1f yn5t4uzg3r, dwlk r5 vbody as a solid cylinder and her 5jpn8+l( ig riarms 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 against8(in5 gjr+pl i her body.
Post time 2025-2-18 20:00:22
