[填空题]
Model a figure skater’k5spjdt i .ty1)m kz35whh7l;:vqc1rbh g 09ws body 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 ouh97vw0hlw1g : bcrqh ;tstretched arms, and with arms held tightly against her body.