A rapidly spinning paddle wheel raises the temperature of 200mL of water …?
A rapidly spinning paddle wheel raises the temperature of 200mL of water from 21 degrees Celsius to 25 degrees. How much the work is done by the friction force. All the work will go to increase the internal energy of the water. Q=mC∆θ=3360 J Where C=4200J, m=1000×200×10^-6=0.2 kg There are ”No” heat transfer in the […]
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