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//Example 20.2
close;
clc;
//given data
m=200; //Mass in grams
sp=1; //sp heat of water in cal/gm deg C
T1=30; //in deg C
T2=40; //in deg C
//power radiated
p=4.18*m*sp*(T2-T1);
printf('\nPower radiated %0.2f kW\n',p/1000);
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