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+
+//exapple 9.3
+clc; funcprot(0);
+// Initialization of Variable
+rhog=1200;//density of glycerol
+mu=1.45;
+pi=3.1428;
+g=9.81;
+rhos=2280;//density of sphere
+v=0.04;//terminal velocity;
+a=2*mu*g*(rhos-rhog)/v^3/3/rhog^2;//a=Cd/2/Re
+//using graph of Cd/2/Re vs Re
+Re=0.32;
+d=Re*mu/v/rhog;
+disp(d , "Diameter of sphere in (m):");