Engineering, 11.11.2019 21:31, camillaowens206

Q1. basic calculation of the first law (2’) (a) suppose that 150 kj of work are used to compress a spring, and that 25 kj of heat are given off by the spring during this compression. what is the change in internal energy of the spring during the process? (b) suppose that 100 kj of work is done by a motor, but it also gives off 10 kj of heat while carrying out this work. what is the change in internal energy of the motor during the process?

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Q1. basic calculation of the first law (2’) (a) suppose that 150 kj of work are used to compress a s...