[填空题]
A figure skater can increase he6 /x w1j t l*q+bji/1i-urtnnpr spin rotation rate from an initiawrnv o6qs3)c.fg 64bvl rate of 1.0 rev every 2.0 s to 63 gvbr v qno)46ws.cfa 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? $kg \cdot m^2$