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An air compressor operates at steady state with air entering at P1=1 bar, T1=20C and exiting at P2=2 bars. Determine the work and heat transfer per unit of mass passing through the device in kJ/kg, if the air undergoes a polytropic process with n=1.3. Neglect changes in kinetic and potential energy between the inlet and the exit. Use the ideal gas model for air.
Find the differential equation governing the motion of the diver while she is in contact with the board. Neglect any rotational inertia and what is the peak de?ection of the diving board?
why is it desirable and advisable for the jominy specimens to be held in the oven at the austenitic temperature for a
a gas-turbine power plant operates on the simple brayton cycle between the pressure limits of 100 and 800 kpa. air
One kilogram of air as an ideal gas executes a Carnot power cycle having a thermal efficiency 50%. The heat transfer to the air during isothermal expansion is 50 kJ. At the end of the isothermal expansion, the pressure is 574 kPa and the volume is..
sometime when riding an elevator or driving up or down a hilly road a persons ears pop as the pressure difference
an adiabatic compressor compresses nitrogen k1.4 r0.297 from p1200 kpa and t1300k to p21500kpa. the isentropic
what does the employee coaching process involve and what kinds of employees will benefit from the process? describe the
five kilograms of water initially at 4000 kpa 200 degrres are contained in a piston-cylinder device. a variable force
changes made to stainlees steel piping to reduce intergranular stress corrosion cracking describe four modifications
Determine the time taken for the crate to come to a rest and the distance travelled if the coefficient of dynamic friction is 0.4
a pure jet engine propels an aircraft at 250 ms through air at 45 kpa and -13 degc. the inlet diameter of this engine
the train car has a mass of 10 mg and is traveling at 5 ms when it reaches a. if the rolling resistance is 1100 of the
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