[填空题]
Model a figure skater’s body as a solid cylin3q)sdvm1:b *mqni)d tn hp+n8der and s+uk:d m9* lukc5n9aoher arms as thin rods, making reasonable estimates for the dimensions. Then calculate the ratio of the angular speeds for a spinning skater with outstretched amk+d:as5 lu noc*uk99 rms, and with arms held tightly against her body.
Post time 2025-2-18 20:00:22
