[填空题]
Model a figure skater’s body as t7x/ f1 aofw7ga soli)w7n3idw 6ws +tugrbtf t39.fd 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 outstretcheffwd.s3ntut 3)bw 7r69 twgi +d arms, and with arms held tightly against her body.
Post time 2025-2-18 20:00:22
