[填空题]
A figure skater can i8 dsn* x7-ooufu 4znr/ncrease he* w h-g*,ntldj teyxi(;j(cz8r spin rotation rate from an initial rate of 1.0 rev every 2.0 s to a final rate of 3 ;8wy, t- (xjn* i(jdg zh*ltce$rev/s$ 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? $kg \cdot m^2$