Consider a ball hanging by a string where the ball is fully immersed in bucket of water. The ball does not touch the bottom of the bucket. Assume that after the string breaks the ball falls through the liquid with constant speed. If the mass of the bucket and the liquid is $1\mathrm{.}20$ kg$,$ and the mass of the ball is $0\mathrm{.}150$ kg$,$ what is the reading on the scale $($a$)$ before and $($b$)$ after the string breaks?