[填空题]
Model a figure skater’*qw.km jq7-w us body as a solid cylinder and her arms as thin rodz,el ec5(txkkpm daq- :t i 0hn81e16ls, making reasonable estimates for the dimensions. Then calculate the ratio of the an8ktkemc1a -:phz end1x0e56qlt l(,igular speeds for a spinning skater with outstretched arms, and with arms held tightly against her body.