[填空题]
Model a figure skater’s body as a so*vf9rhl7 d(( ja1oymd grjb,6i mkn:-lid cyl;vkp4xwd6+ ecvm3q uws)( ji-inder 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 armsej3 )vckdpiwm +qsw(4; -u6vx held tightly against her body.
Post time 2025-2-18 20:00:22
