code class$=$"asciimath"$>$EXAMPLE $5\mathrm{.}3$ Determine the direction of flow through the tube shown in Fig. $5\mathrm{.}9,$ in which $\backslash$gamma $=8000($N$)/($m$^(3))$ and $\backslash$mu $=0\mathrm{.}04$k$($g$)/($m$)*$s$.$ Find the quantity flowing in liters per second, and calculate the Reynolds number for the flow.