[填空题]
A figure skater can inkvtrxg6*hr), 58/fgq g(pbw ocrease her spin rotation rate frob34lm6bnp6sq xpq)+jm an initial rate of 1.0 rev every 2x6 psjpn mlb4b6+qq)3.0 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? $kg \cdot m^2$