Based on the given system and the following properties, find the volumetric flow rate $($gallons $/$ minute$)$ in the system.

$V1=V2=0$;$P1=P2=0$ psig ; pipe length $=1000ft$; pipe roughness $=0\mathrm{.}0018in.$ pipe diameter $=2$ in

fluid properties: viscosity $=1cp$; density $=62\mathrm{.}3lb\frac{m}{f}{t}^{{?}^{?}}3$

height of upper tank is $z=20ft$;

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