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1. Steam flowing at 50 ft/s, 200 psia, 600 F, expands to 150 psia in a converging nozzle. Find the exit velocity and area ratio Ae/Ai.
2. A convergent nozzle has a minimum area of 1 ft2 and receives air at 25 lbf/ in.2, 1800 R, flowing at 330 ft/s. What is the back pressure that will produce the maximum flow rate?
16.5 the california ambient air quality standard for visibility requires that the average sigma e be less than 0.23
You need to prepare a paper on the importance of transport planning. Identification of the full range of possible impacts on the natural and socio-economic environment - Evaluation and quantification of these impact.
Calculate the energy released per 42He nucleus produced and per mole of 42He produced. The atomic masses are 21H, 2.01410, 31H, 3.01605, and 42He, 4.00260. The masses of the electron and neutron are 5.4858 10-4 and 1.00866 amu, respectively.
The components of plane stress at a critical point on a thin steel shell are shown. Determine if failure (yielding) has occurred on the basis of the maximum distortion-energy theory. The yield stress for the steel is σY = 650 MPa.
Which process requires more energy: completely vaporizing 1 kg of saturated liquid water at 1 atm pressure or completely vaporizing 1 kg of saturated liquid water at 8 atm pressure
An investigation at a particular site reveald 10 m of clay overlying 2m of sand resting on bedrock.the water table was found to be at the ground surface and the piezometric level for the sand to be 2m above ground level
Samples of a dry sand are to be tasted in a direct shear test and a triaxial test. In the triaxial test, the sample fails when the major and minor principal stresses are 140 psi and 40 psi, respectively.
The entrance to Mt. Hood Meadows (elevation 3,075 ft at the point of crossing) is grade separated from Viking highway (elevation 3,050 ft at the point of crossing) and will have to be connected. The two roadways intersect at a right angle.
A normally consolidated clay soil has angle of friction = 20 degrees and effective stress angle of friction = 28 degrees. If a consolidated undrained test is conducted on this clay
A tangent section of highway has a -1.0% grade and ends at station 0+1450and elevation 25m. It must be connected to another section of highway that has a -1% grade and that begins at station 1+345 and elevation 40m.
For this problem, read and understand the specifications to determine the system behavior. The specifications are intentionally somewhat ambiguous. If you find some rules on system behavior unavailable, state your assumptions and proceed forth wit..
The bus B has a weight of 15,000 lb and is traveling to the right at 5ft/s. Meanwhile a 3,000 lb car A is traveling at 4ft/s to the left. If the vehicles crash head-on and become entagled, determine their common velocity just after the collision.
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