[填空题]
A figure skater can incr w,(*xisu k8ywtlk v;.ease her smp42iln * 5qjf+hpl j -.dsj5ipin rotation rate from an initial rate of 1.0 rev every 2.0 s to a 54 ljl2smp+.djjn5p i-hf*i q 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? $kg \cdot m^2$