[填空题]
A figure skater can inc4etfm5e*vs dte i--n-20njua reom 8jsm4g fp tws,.9m,ase her spin rotation rate from an initial rate of 1.0 rev every 2.0 s to a final rs owjmmf,9 84gs,.tm pate 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? $kg \cdot m^2$