[填空题]
Model a figure skater’s body as a solid cylinder and her arms as 9 .v e98+9qtz(0uan s gqqknirthin rods, makiavit rs.k nqq9z(+9geqn 89u01eib 9 bui)f/j /,x4uk o+*4c swclmqtng reasonable estimates for the dimensions. Then calculate the ratio of the angular speeds for a spinning skater with outstretched ar/,b k+io)4xm/uu fc*9ec lt s41ib qjwms, and with arms held tightly against her body.
Post time 2025-2-18 20:00:22
