[填空题]
Model a figure skaterj w5,r7zk9zm ouvya84 ’n :.nbyh/rb.s s body as a solid cylinder and her arms as thin rods, making reasonabler.b: bnn.hys/ 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
