please if you are not sure $100\%$ do not solve it $!!$ thanks Water is draining from a large pressurized tank as shown in the figure. $P$ is the

pressure in the tank, $$ is the water density, and $h$ is the water elevation above

the outlet.

$($a$)-$ Find the velocity at the exit based on the water elevation and pressure in the

tank$.$

$($b$)-$ The depth of the water in the tank is $h=2m,$ the tank cross$-$sectional area is

$m^2$ with the exit area $10c{m}^2,$ and the pressure in the tank is maintained at

$P=10$kPa : Find the time required to empty the tank. Tank area is $1m2$