[填空题]
Model a figure skater’s body asm)n 84zlo (xdm,(zoam a solid cylinder and her aes ecgas:+ k40rms as thin rods, making reasonable estimates for t+ec0ea s4skg:he 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
