[填空题]
Model a figure skateru*lp gj .*ext3’.lu 8l pnz;mpqytbs4 ja;:d3(s body as a solid cylinder and her arms as thin rods, making reasonable estimates for the dimensions. Then calculate the rati(b t4nm;3lju yds l;8:p.az qpo 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
