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R-134a is throttled from 1200kPa and 40oC to 200kPa. It is known that heat of 5kJ/kg is lost from R-134a to the surroundings at 20oC. Determine (a) the enthalpy of R-134a at the exit; (b) the temperature at exit; (c) the entropy of R-134a at the exit; and (d) the entropy generation.
suppose the professor on gilligans island needs to measure temperature and happened to find enough iron and constantan
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Consider a magnet moving in a coil of N, turns. This system can be modelled as mass spring damper system. The damping coefficient consist of both mechanical and electromagnetic damping. How can I calculate the mechanical electromagnetic damping?
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What is the composition, in atom percent, of an alloy that consists of 5.5 wt% Pb and 94.5 wt% Sn?
the average idle human releases about 116 w of power which corresponds to a daily consumption of 2400 calories. at
five kg of r-22 refrigerant at 3 bar and saturated vapor is contained in a closed rigid tank. a process cools the r-22
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