[填空题]
A figure skater can increase her iiactl i;p6ho0k8+x2 spin rohkz,z+k/ roez7/)*b l9e gqae tation rate from an initial rate of 1.0 rev every 2.0 s thz le+ zr)e9q/kk /eao7*g ,bzo 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? $kg \cdot m^2$