[填空题]
A figure skater can increanmswek6 3. l2nse h jz7( slr6 *swt(1jt,ge 3pc5nsvst.ypu cb25 er spin rotation rate from an initial rate of 1.0 rev eves67j bv( ,5 ry3lwt5 * jt.n2 s1ccpgustspe(zry 2.0 s to a final rate 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? $kg \cdot m^2$