[填空题]
A figure skater can irsenjir4*tg t q0o98sw f,/1w ncpcfl 1 b6*qz:erease her spin rotation rate from an initial rate of 1.0 rev every 2.0 s to a e:*b1z 6lpq fcfinal 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? $kg \cdot m^2$
