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+clear;
+clc;
+
+//Example 2.1
+//Caption : Program to find Energy in a Waterfall
+
+
+//Given values
+H=100;//height=100m
+M=1;//Mass of water=1Kg
+g=9.8066;//Acceleration due to gravity(m/s^2)
+
+//Solution
+
+//Del(Energy of the system)=0
+//hence,del(U)+del(KE)+del(PE)=0
+
+//(a)
+PE1=M*H*g;//(J)
+disp('J',PE1,'(a)Potential energy of Water at the Top');
+
+//(b)
+del_U=0;
+KE1=0;
+PE2=0;
+KE2=PE1;//(J)
+disp('J',KE2,'(b)Kinetic energy of Water');
+
+//(c)
+del_U=KE2;
+disp('J',del_U,'(c)Change in Internal energy when 1kg Water added');
+
+//End
+\ No newline at end of file