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The exhaust nozzle of a jet engine expands air at 300kPa and 200oC adiabatically to 100kPa. Determine the air velocity at the exit when the inlet velocity is very low (can be neglected) and the nozzle isentropic efficiency is 90%.
counters a and b are non-paralyzable with dead times of 30 or 100 microseconds respectively. at what true event rate
find the complete initial and final states for the following processes t p v h u s and phase involving simple
the 2-lb box has a velocity of 5 fts when it begins to slide down the smooth inclined surface at a. the coordinates of
team at a rate of 5 lbms enters an adiabatic turbine at 800 psia 1000 f and leaves at an actual condition of 10 psia
an ideal rankin cycle uses water as a working fluid which circulates at a rate of 80kgs. the boiler pressure is 6 mpa
a rigid container with a volume of 0.17m3 is initially filled with steam at 180kpa 340c. it is colled to 90c. a at what
a tank has a volume of 0.35m3 and initially contains saturated vapor at 333 kpa. the valve is next opened and steam
a piston-cylinder device initially contains 1.4 kg of refrigent-134a at 140 kpa and 20 degc. heat is now transferred to
steam having a specific enthalpy of 160 kjkg and pressure of 1 kpa enters as adiabatic pump. upon leaving the pump the
determine the new differential reading along the inclined leg of the mercury manometer of the figure if the pressure in
two 455000-lb locomotives pull 58 230000-lb coal hoppers cars. the train starts from rest and accelerates uniformly to
a solid shaft l 1.9 m long is supported between two bearings. the shaft rotates at 250 rpm. a 20 degree involute gear
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