[填空题]
A figure skater can in rym69o746lz+sv j2co qvd 1xwcrease her spin rotation rate from an initial ra9l2 m1h x1bc(pqgg)nl cja 7:mte of 1.0 rev every 2.0 s to a final rate of 1l1 79xmalg) nbcpg :2j(c hqm3 $rev/s$ 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? $kg \cdot m^2$