[填空题]
A figure skater can increase her spin rni(vta86 ez q3otation rateghm7tq5u h2dizu*36ef 82m; -uuueve from an initial rate of 1.0 rev every 2.0 s to a final rate ofum u5euhg z 2 mdvh62t ef*eq8i73u;-u 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? $kg \cdot m^2$