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A bar of rectangular cross section 20mm × 5mm with a central hole of diameter 4mm is subjected to a tensile force F which fluctuates between maximum and minimum values of 10 kN and 8 kN respectively. Determine the safety factor against eventual fatigue failure with a reliability of 50% if the bar is machined from steel with Sut = 324 MPa and sY = 210 MPa.
a pistoncylinder contains water with quality 75 at 200 kpa. slow expansion is performed while there is heat transfer
suppose a satellite in geosynchronous orbit has just passed above the international space station with respect to the
A turbine takes in 2 kg/s neon at 27C and 200 kPa with negligible velocity. The produced work is 75 kW and 30 kW of heat leaks into the turbine from the surroundings. The neon exits at 100 kPa and 230 K. Find the exit velocity of the neon.
the thermal conductivity of an insulating material is found by casting a 0.1 m thick shell of the insulating material
Question about Turbomachinery - Impulse & Reaction Turbines, An impulse air turbine rotor with a blade speed (U) of 300 m/s is measured to have a relative rotor inlet velocity (W_1) of 750 m/s at an angle of 69 degrees and an outlet relative veloc..
air flows steadily at low speed through nozzle distance charging to atmosphere. the area at the nozzle inlet is
a viscous fluid flows past a flat plate such that the boundary layer thickness of a distance d from the leading edge is
determine the force in each member of the space truss and state if the members are in tension or compression. the truss
consider incompressible viscous flow between two very long plates separated by a distance h. the bottom plate is
a steam turbine has an inlet pressure of 1200 kpa and temperature of 400 degc. the steam exits the turbine at a
a ceramic bidet failed catastrophically in normal use causing serious lacerations to the person concerned. the facture
Calculate the specific heat at constant pressure, and specific heat at constant volume for propane which is compressed at the following inlet condition;
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