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diff --git a/896/CH4/EX4.1/1.sce b/896/CH4/EX4.1/1.sce
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+clc
+//Example 4.1
+//calculate change in pot. energy per unit mass and total change in pot. energy
+g=9.81;//m/s^2 acc. due to gravity
+dh=23;//m change in height
+dpe=g*dh//m^2/s^2 change in pot energy per unit mass
+printf("change in pot. energy per unit mass is %f m^2/s^2\n",dpe);
+m=10;//kg
+dPE=m*dpe//kgm^2/s^2 or J change in pot. energy 
+printf("The total change in potential energy is %f J",dPE);
+\ No newline at end of file