[填空题]
A figure skater can increase hewtjz*-icy(eu )c; sb k85,uznr spin rotatio mcpz9xw2 azy7v,j;y(n rate from an initial rate of 1.0 rev every 2.(c7 ,z;ya9wm p zvx2yj0 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? $kg \cdot m^2$