$5\mathrm{.}52$ A manifold design involves water entering a round pipe at section $1$ with a discharge of Q$1=9$ L$/$s and leaving at section $2$ with a mean velocity of V$2=0\mathrm{.}7$ m$/$s$.$ Between sections $1$ and $2,$ water exits the manifold through three ports each with a discharge of Qp $=1\mathrm{.}3$ L$/$s$.$