[填空题]
Model a figure skater’s body a5p-1;r* cu qeuocz. m3fuj8nls a solid cylinder v9(yh*e goeo +,/zycxand her arms as thin rods, making reasonable estimates for the dimensions. Then calculate the ratio ofh /*oexe +oyzc,y(v9g 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
