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+clc;
+disp("Example 1.3")
+density= 1200 // in kg/m^3
+r= 0.15 // bowl radius in m
+Ri=0.12 // interface position from the bowl axis in m
+n= 3500 // rotational speed in rpm
+omega= %pi*2*n/60
+p= density*omega*omega*(r^2-Ri^2)/2
+disp(" Gauge pressure is ")
+disp(p)
+disp(" N/m^2")