[填空题]
Model a figure skater’s body gfqc3 0sy ,sz-ry6g-e-wf;csas 3pl *:av:z.ih3 t qzyia solid cylinder and her arms as thin rods, making reasonable estimates for the dimensions. Then calculate the ratio of the angular sqtl* yia3z :hi3: zvp.peeds for a spinning skater with outstretched arms, and with arms held tightly against her body.
