[填空题]
Model a figure skater’s.d-zbx3 oo:stf1ao y3w: llo, body as a solid cylinde l osacjnkt9c (rs2mo;)6 , j+yh6loh.r and her arms as thin rods, making reasonable estimates for the dimensions. Then calculate the ratic6 hl.oh js96m2, nks(l+;)aycotojro of the angular speeds for a spinning skater with outstretched arms, and with arms held tightly against her body.