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A compressor takes in air at 100 kPa and 300 K and discharges it at 0.25 kg/s at 1.2 Mpa and 450 K. Unfortunately, the compressor loses heat to the surroundings at a rate of 2.5 kW during the process. What is the density of air leaving the compressor? What is the volumetric flow rate of air leaving the compressor? What is the power required to operate this compressor? Is the sign of the answer to part (c) as expected? Explain. Clearly indicate which table(s) you are using for any property values you may need.
what is the specific heat of air in US customary units given that its value in SI units is approximately 1 kN.m/kg.K?
Evaluate the shearing and normal stresses at points H and J located at the ends of the horizontal and vertical diameters of transverse section located 2.5 in. to the left of bearing B.
two 20mm steel plates are welded to a rolled S section as shown. Determine the moments of inertia and the radii of gyration of the combined section with respect to the centroidal x and y axes.
suppose a pair of rolling element bearings is being considered as the support for the front wheel of a bicycle. the
the drag on a 2-m-diameter satellite dish due to an 80-kmhr wind is to be determined through a wind tunnel test using a
In the paragraphs that follow, answers are provided to a number of key questions about desogestrel-only pills. What is the desogestrel-only pill?
a distillation column with a total condenser and a partial reboiler is separating two feeds. the first feed is a
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air enters a compersoor operating at steady state at 1.05 bar 300k with a volumetric flow rate of 12 m3min and exits at
in cooling situations where the desired temperature range is large two refrigeration cycles can be stacked to create a
an air-conditioning unit takes in outside air at 46oc and 100 kpa having a relative humidity of 16. the air is cooled
if ixiy in a given system of coordinates what can be concluded about ixy? what can be concluded about ixy if in
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