[填空题]
Model a figure skater’su,gg2 b31 n6u:ytybb2gc yq3ipisy07h-opq:5xzyv;0g9pc obody 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 ago-;:cyqhz0vo x5 ppg9ainst her body.
Post time 2025-2-18 20:00:22
