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Water in 50 liter rigid container is initially at 500 kPa and 350 degree C. As the result of heat transfer the water obtains thermal equilibrium with the surrounding, which are at a temperature of 30 degree C. What is the change in entropy of the water going from state 1 to state 2? If the surroundings are treated as a thermal reservoir, what is the total change in entropy of the universe due to this cooling process?
in an effort to increase thrust it is decided that an aft-fan should be added to this engine. the aft-fan creates a
two steel shafts are made of cold-drawn steels having ultimate tensile strengths of 185 kpsi and 240 kpsi respectively.
calculate: a) the overall train value. b) the output rational speed at shaft 5. c) the output torque at shaft 5. Relevant gear data is= NA= 17, NB= 36, NC= 19, ND= 41, worm E = double lead, worm G = triple lead, NH= 37?
a a rod of steel 0.5 m long is heated from 20 c to 80 c while its ends are maintained rigid. determine the type and
a closed rigid tank well-insulated contains air initially at 1 bar 300 k. the volume is 2 m3. a stirring rod transfers
two particles a and b start from rest at the origin s0 and move along a straight line such that aa8t-4 fts2 and
the upper surface of a 50-cm-thick solid plate k237 wmk is being cooled by water with temperature of 20 degrees
assume air flows isentropically through a converging-diverging nozzle. at station 1 which is aft of the throat and has
saturated water vapor at 300 kpa undergoes an isothermal process in a closed system until it becomes a saturated
explain what the equation of motion will become if you have three particles - the first two are sticky and the third
a temperature scale is defined by the equation tsti lim pi-0 pspi1.36609 as in gas thermomery but now the reaumur
a car is climbing the hill of slope theta1 at a constant speed v. if the slope decreases abruptly to theta2 at point a
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