$q,,$

A circular swimming pool has a diameter of $18$ m $.$ The circular side of the pool is $3$ m high, and the depth of the water is $2\mathrm{.}5$ m $.($The acceleration due to gravity is $9\mathrm{.}8\frac{m}{s^2}$ and the density of water is $1000k\frac{g}{m^3}.)$

How much work $($in Joules$)$ is required to:

$($a$)$ pump all of the water over the side

$($b$)$ pump all of the water out of an outlet $1$ m over the side?

$$

$$