Problem pts$)$ Compute the flow depth $y$ in the reinforced concrete $(n=0\mathrm{.}014)$ pipe

below with the pipe's diameter $D=2\mathrm{.}0m.$ The flow rate $Q=0\mathrm{.}15\frac{m^3}{s}.$ The channel slope

$S=0\mathrm{.}01$ as shown in Figure $2.$

Figure $2$: RCP with diameter $D.$