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diff --git a/1571/CH3/EX3.4/Chapter3_Example4.sce b/1571/CH3/EX3.4/Chapter3_Example4.sce
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+clc
+clear
+
+//INPUT DATA 
+n=2;//no.of lead blocks
+m=210;//mass of each lead block in gm
+v=20000;//velocity of block relative to earth in cm/sec
+J=4.2*10^7;//mechanical equivalent of heat in ergs/calorie
+cp=0.03;//specific heat of lead in kj/kg-K
+
+//CALCULATIONS
+E=(m*v^2)/2;//kinetic energy of each block in ergs
+E2=n*E;//total kinetic energy in ergs
+T=E2/(J*m*n*cp);//mean rise in temperature in T
+
+//OUTPUT
+mprintf('the mean rise in temperature is %3.1f deg.C',T)