#### Please solve using MATLAB ####

Q4: The Hazen Williams equations can be used to calculate the pressure drop, Pd (psi/ft of pipe) in pipes due to friction: pd=C1.85d4.874.25Q1.85 Where Q is the flow rate (gpm), C is a design coefficient determined by the type of pipe, and d is the pipe diameter in inches. Consider a steel pipe with C=120, calculate the pressure drop in a 1000ft long pipe for flowrates of 250,300,350,400, and 450gpm. Plot the Pd against Q for various diameters ( d=2.0,2.5,3.0, and 3.5 inch). Plot all the curves on a single graph/figure with a legend and other necessary details