[填空题]
A figure skater can increase he ppzdz9x0:yqpx3 8-* -mqcdn vs*zn: jr sphu 5 4b*ipgg+ain rotation rate from an initial rate of 1.0 rev every 2.0 s to a final rate oug5iab h4+g*pf 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? $kg \cdot m^2$