[填空题]
Model a figure skater’s bo(vus)s px uwv, pm8d/0d ,o9us3q7tcdst5g(dm oa)z 4m9tg k 6ry as a solid cylinder and her arms 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 against her body. t,kq3 dst5uag) 6(tgmzmo7so9c d 9 4r