A model steam engine of 1.00 kg mass pulls eight cars of 1.00 kg mass each. The cars start at rest and reach a velocity of6.50 m/s in a time of 3.00 s while moving a distance of 4.50 m. During that time, the net heat input is 127 J. What is the change in the internal energy of the engine?
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A model steam engine of 1.00 kg mass pulls eight cars of 1.00 kg mass each. The cars start at rest and reach a velocity of6.50 m/s in a time of 3.00 s while moving a distance of 4.50 m. During that time, the net heat input is 127 J. What is the change in the internal energy of the engine?
To calculate change in internal energy , we have to calculate work done
∆Q = ∆U + ∆ W
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