[填空题]
Model a figure skater’s body as a solid cylinder and her arms;a:nd :em 3 s:mp2zy kyp- lwqyak6v(8nn.g)w as thinf*dzs,pw i3g; rods, making rea i,;g *p3fdwszsonable 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.