[填空题]
Model a figure skater’s body as a solid cylinder and her arms .qkxnq (z bg2 6u/omctw9 g)hlx6 1b1aas thin rod ix2+vcsq)t6ls, making reasonable estimatxv2t+)c q i6sles 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 body.
Post time 2025-2-18 20:00:22
