[填空题]
A figure skater can inrrd 9; wh(xrac *+9dfo)p) 39u+t3nsf74dthxwbeld) 6wc jqqcrease her spin rotation rate from an initial rate of 1.0 rev every 2.0 s to a final ratld w fh3nb6xw4t7c9)+qsqpd ju))te3 e of 3 $rev/s$ If her initial moment of inertia was 4.6 kg*$m^2$ what is her final moment of inertia? How does she physically accomplish this change? $kg \cdot m^2$