Fluid Mechanics in SWCE

For a $90^\circ$ triangular V-notch ($\theta = 90^\circ$, $\tan(\theta/2) = 1.0$) with $C_d = 0.60$ and $g = 9.81\text{ m/s}^2$, the head over the notch is $H = 0.30\text{ m}$. The discharge in $\text{m}^3/\text{s}$ is (rounded off to three decimal places):