[填空题]
A figure skater can increase her spin rotarn:du 8-- pzysjebyz )dt; 3r-tsgsi66c b+7.gaz+2ius 3 a5 dw:ekustion rate from an initial rate of 1.0 rev every 2.0 s to+2st wuga: 6s5.6ekiudcgasz 7s +bi3 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? $kg \cdot m^2$