[填空题]
Model a figure skater’8. -scavmkei*c(yr+r s body as a solid cylindesq:p jk1)o*1xko( oqs r and her arms as thin rods, making reasonable estimates for the dimensions. Then calculate thesqk p1*(xkoj o) 1s:qo ratio of the angular speeds for a spinning skater with outstretched arms, and with arms held tightly against her body.
Post time 2025-2-18 20:00:22
