Determine the amount if change in internal energy

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A system experiences a heat transfer into the system of 50 Btu and does work against the surroundings of 2100 ft-lbf reducing its horizontal velocity from 2 fps to 1.5 fps. The mass of the system is 3 lbm. Determine the amount if change in internal energy [Btu]. Show energy diagram.

Reference no: EM13708074

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