[填空题]
A figure skater can incret4 ;js) 1* s*jyejyjip+p-n z0hzcu)hase her spin rotatipz0f d)+gc0ryfbbro5 - gm+v2 g ykc+7on rate from an initial rate of 1.0 rev e0z20grb7 cpdro y +c)+-b+ 5fvyfk ggmvery 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? $kg \cdot m^2$
