[填空题]
Model a figure skater’s 0d1w(m b2orurtv;f i;j+amj3 body as a solid cylinder and her arms as thin rods, +bd9*uurz4v6ifygm 6making reasonable estimates for the dimensions. Thendgfy *ur96m6b+i vu4 z calculate the ratio of the angular speeds for a spinning skater with outstretched arms, and with arms held tightly against her body.
