[填空题]
Model a figure skater’s body ashsf0v)g*6r +djtg kt,29s7 rydp1scq bo06zt a solid cylinder and her arms as thin rods, making reasonable estimates for the dimensions. Then calculate the ratio oqpbs61o y zs7c029dtrf 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
