[填空题]
Model a figure skater’s body as3rom f; :7ec(r0ys3ntjsbygu2 f3/ fh a solid cylinder and her arms as thin 2ji8t.do lg( crods, 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 bodyo8l(gt2 dc j.i.
