[填空题]
Model a figure skateg4xy s+3 am:w/ 7vxyspr’storktq,qhp +fi+ 5 ;,db b6w*q body as a solid cylinder and her arms as thin rods, making reasonable estimates f 6kq,itq+ph, *w+bo tqdb5;r 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.
Post time 2025-2-18 20:00:22
