[填空题]
A figure skater can increase her sb q u5ww kzmk)6e*l,7m-(m ytzuj q7z; kynw23pin rotation rate from an initial rate of 1.0 rev every 2 mzq7 ;kzuyn3t2-y w(j.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? $kg \cdot m^2$