[填空题]
A figure skater can increase her spin r p q.n* :11qa9x)lh/ezjxutorotatiho8- xn4h(sk f5p--ld a rpsy +e0c6agon rate from an initial rate of 1.0 rev every 2.0 s to a f5xcaf plyghk6das +ep0s (n 4-h8ro--inal 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? $kg \cdot m^2$