//Example 4.12 clc; clear; close; format('v',9); //Given data : S1=0.005;//sp. gravity S2=0.79;//sp. gravity S3=13.6;//sp. gravity h=30/1000;//m w=1000*9.81;//N/m^3 pAB=h*(S3-S2)*w;//N/m^2 disp(pAB,"Pressure difference between the two vessel in N/m^2: ");