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Ten pounds-mass of R-22 is at an initial volume of 4.059 ft3 and pressure of 200 psia. It is compressed isobarically until its volume is two-thirds of its initial volume. The piston is then held in place as the refrigerant cools until its temperature is 70 F. Determine the heat transfer [Btu] and work transfer [Btu] for the two-step process. Also show the process on P-v state diagram.
consider the following states of biaxel stress 1 sigma1 30 sigma2 0. 2 sigma1 30 sigma2 -15
Knowing that the gage pressure inside the tank is 5 MPa, determine the maximum stress and the maximum shearing stress at point L.
An Al2O3 whisker is a small single crystal used to reinforce metal-matrix composites. Given a cylindrical shape, calculate the number of Al atoms and the number of O atoms in a whisker with a diameter of 1 micrometer and a length of 25 micrometers. (..
minimum weight design of a variable shape three-bar truss.numerical solution using the matlab optimization toolbox
a single degree of freedom translational vibrating system has a concentrated mass weighing 77.2 lbs a spring constant
air flows in a channel whose velocity at 3 neighbouring points ab and c which are 10 cm apart are shown in the
1. for the connection shown in figure assuming the bolts are frac34- in. diameter and the angle and plate astm a36
two flows of h2o one of which is saturated vapor at .6 mpa and the other of which is at .6 mpa 600 deg c mix
An autoclave contains 1000 cans of pea soup. It is heated to an overall temperature of 100°C. If the cans are to be cooled to 40°C before leaving the autoclave, how much cooling water is required if it enters at 15°C and leaves at 35°C? The speci..
Air enters a one-inlet, one-exit control volume at 6 bar, the pressure is 3 bar, the temperature is 456.5 K, and the velocity is 300 m/s. The air behaves as an ideal gas for steady-state operation, determine: (a) the mass flow rate in kg/s (b) the ex..
A magnetic pickup is used to detect the shaft speed of a turbocharger. A standard hexagonal nut is used to excite the pickup. If the shaft is turning at 50,000 rpm, how many positive impulses will be counted per second?
1. figure shows a pneumatic circuit in which four actuators are controlled.a state the sequence in which the cylinders
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