[填空题]
A figure skater can increase her se.ni8 gfizu)+,m).q+s-1 exb ohcvxnpin rotation rate from an initialw 22d3,ktni2w2b ywbx- kgqe6 rate of 1.0 rev3yi wq 2w-be2dk6 ,nktx2gwb2 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? $kg \cdot m^2$