[填空题]
Model a figure skateh45tzc +l+it d;t.vid rv9*q1/wifpw inf8yot(av b2u2d 2/kk’s 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 outstretched arms, and with arms held tightly w1f(qoknvu 2pa 2vtb/wk 9 d8 */yiif2against her body.
Post time 2025-2-18 20:00:22
