[填空题]
A figure skater can increase her sp*42;ji8a r f9oggkom min rotation rate from an ini --iswx /o z5w3ec)mgytial rate of 1.0 r5oxc)em zis3 y w--g/wev every 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? $kg \cdot m^2$