//Example 8-2 Pressure Drop and Head Loss in a Pipe
clc;
//Properties of water at 40F
rho=1000 //density [kg/m^3]
mu=1.519 * 10^-3 //dynamic viscosity [kg/m.s]
g=9.81 //acceleration due to gravity [m/s^2]
D=0.3 //diameter of pipe [cm]
L=9 //length of pipe [m]
V_avg=0.9 //average velocity [m/s]