i know the vol of water is $\displaystyle 8 \frac{1}{3} \pi $

the formula for vol of hemisphere is $\displaystyle \frac{4}{3}$ x $\displaystyle 1.5^2$ x $\displaystyle \frac{1}{2} $ x $\displaystyle \pi$

then i add the formula for vol of cylinder 1/3 x $\displaystyle \pi $x $\displaystyle 1.5^3 $x height

i found the height to be $\displaystyle 2 \frac{19}{27} $

now how do i find the height of the hemisphere?