[填空题]
Model a figure skater’s body as a solid cyliq ,ru *bfiw 10lv2yr 6mml+4eynder and her arms as tx7l:7*jp x q3q r0tbw j3+y6yesb3r-i (qicm bhin rods, making reasonablerlbwqb s6 7073mjtxbr(3 jcy qx -ei:*qpiy +3 estimates 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
