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Question: Air flows through a duct with a constant cross-sectional area. The pressure, temperature, and Mach number at the inlet to the duct are 180 kPa, 30°C, and 0.25, respectively. If the Mach number at the exit of the duct has risen to 0.75 as a result of friction, determine the pressure, temperature, and velocity at the exit. Assume that the flow is adiabatic.
What is the maximum velocity in the boundary layer at this location and at what position in the boundary layer does the maximum occur?
Find the transmittance at each wavelength. and the absorbance at each wavelength. Plot the spectrum of the compound.
R134a rests in a compressed fluid can at 120psia, and a specific volume of 0.38ft3/lbm. What is its temperature and quality? Half of the mass is now vented off to the atmosphere. The can is allowed to exchange heat with the surroundings at 100°F unt..
a bird flies directly into a plate glass window path of bird is perpendicular to plane of window at a location 1.5
It is machined from steel having a hardness of 150 Bhn. With a safety factor of 2, estimate the value of reversed torque that can be applied without causing eventual fatigue failure.
Make a table showing the pressure, volume, and temperature at the end of each of the four stages.
The pendulum consists of a uniform disk attached to a rod of negligible weight. Determine the two values of the distance L for which the period of the pendulum is 1.4 s for small amplitudes.
the manometer shown above in problem 1 above contains water and kerosene. with both tubes open to the atmosphere the
Design a linkage that will give a symmetrical "kidney bean" shaped coupler curve as shown in Figure 3-16 (p. 104 and 105). Use the data in Figure 3-21 (p. 110) to determine the required link ratios and generate the coupler curve with program FOURB..
the uniform slender has a mass of 15 kg. determine the horizontal and vertical components of reaction on pin o and the
100-kg of R-134a at 180kPa are contained in a piston-cylinder device whose volume is 14.715 cubic meter. The piston is now moved until the volume is one half its original sizes. This is done such that the pressure does not change. Determine the final..
a single cycle of a ramp function of voltage versus time has the form vt 100t from -0.01 to 0.01 s. using direct
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