[填空题]
Model a figure skateqar)4mg1.es u2j le1 jro lkvw)2dw loq/j,pb:8t s9p0’s body as a solid cylinder and her arms as thin rods, making reasonable estimates/2vo8 pblklwq:w) ds9 0opj t, 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
