initial commit / add all books

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+clc;

+d_r = 13600; // Density of manometric fluid (mercury) in kg/m^3

+g = 8.92; // Gravitational acceleration in m/s^2

+z1=0.589*sind(60); // vertical height of fluid at section 1

+z2=2*sind(30); // vertical height of fluid at section 2

+z=z2-z1; // Difference in vertical heights of fluid

+patm = 14.7; // Atmospheric pressure in lbf/in^2

+patm=(patm*4.44822*144/0.3048^2); // conversion of lbf/in^2 unit to N/m^2 unit

+p=patm + (d_r*g*(z2-z1)); // Balance of force at A

+disp ("m",z,"Difference in vertical heights of fluid");

+disp ("kPa",p/1000,"The pressure of fluid in the vessel");