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A rigid, well-insulated tank with a volume of 3 fe contains air at P1= 22 lbf/in2 and T1= 475 •R. The air is stirred by a paddle wheel, resulting in an energy transfer to the gas of magnitude 4680 ft-lbf. Assuming ideal gas behavior for the air and neglecting kinetic and potential energy effects, determine the: a) Mass of the air Ibm b) Final temperature in oR c) Final pressure in psi.
for a 6061 t-6 aluminum beam with dimensions b 3.0 cm d 0.5 cm and length a 30 cm a what is the maximum mass that
question a soap bubble with walls 398 thick floats in air. if this bubble is illuminated perpendicularly with sunlight
A paperclip is made of wire 1.25mm in diameter. If the original material from which the wire is made was 15mm in diameter, calculate the longitudinal and diametrical engineering and true strains that the wire has undergone during processing.
the acceleration of gravity g as a function of elevation z above sea level is given by g 32.17 - 3.32x10-6 z where g
as shown in the ?gure a bar is supported by two springs and a damper. the bars left end is free to move vertically and
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consider a naca 0009 airfoil that has a plain flap whose length is 0.2c and which is deflected 25. a. calculate cl and
a tank truck carries a cargo of liquid which fills 23 of the tank figure 3. the tank is open tonbspthe atmosphere. if
The roof is supported by cables. If the cables exert FAB = 100N and FAC = 120N on the wall hook at A, determine the magnitude of the resultant force acting at A.
Cortical bone gets weaker with aging, but it turns out that diaphyseal diameters can also change with aging, particularly in males, such that the safety factor of the diaphysis is approximately constant with aging.
100 cubic feet of an ideal gas goes from a pressure of 20 psig and temperature of 80 deg f to a pressure of 100psig and
What are the percentages of the total heat absorption taking place in the economizer, boiler drum and the superheater, respectively? Assume cp of air and water as 1.005 kJ/kg K and 4.2 kJ/kg K, respectively.
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