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A convergent-divergent nozzle has a throat area of 100 mm2 and an exit area of 175 mm2. The inlet flow is helium at a total pressure of 1 MPa and a stagnation temperature of 375 K. What is the back pressure that will produce a sonic condition at the throat but a subsonic condition everywhere else?
A wave has a height of 1.5 m in water 5 m deep and a wave period of 6 s. Plot the horizontal component of velocity, the vertical component of acceleration, and the dynamic pressure at a point 2 m below the still water level versus time for a 6-s i..
By heat transfer the whole system cools to the ambient temperature of 25?C, at which point the gas pressure is 1.5 MPa. Find the exergy at the initial and final states and the destruction of exergy in the process.
Use slope deflection approach to find complete deflection solutions for a fixed fixed beam with concentrated force, F, distance a from left end and axial load P.
A column 8.2 cm in diameter is packed with sand and water is flowing through it. The head at the upstream end is 1.98 m. Head at the other end is 1.82 m. The column is 0.80 m long. K is 4.2 x 10-4 m/s and ne is 0.080. The positive x direction is t..
Three reservoirs - connected by a branching cast-iron pipe system. If the pipe lengths ar L1 = 3000ft, L2 = 2200, and L3 = 1600 ft the respective pipe diameters are 15,10, and 18in, and the surface water elevations of two of the three reservoirs are ..
Two forces are applied as shown to hook support. Knowing that the magnitude of P is 35 N, determine by trigonometry (a) the required angle a if the resultant R of the two forces applied to the support is to be horizontal, (b) the corresponding magnit..
what are the interface design boundaries and issues for the design and installation of a new toilet for a building
Vehicular access to the Toronto Island Airport now involves the use of a small ferry, capable of carrying about 8 automobiles or an equivalent number of trucks, which operates across the 150 metre wide body of water known as the Western Gap
Consider a tensile test on polycrystalline copper which has a yield strength of 20,000 PSI and a tensile strength of 40,000PSI. The engineering strain at maximum load in a tensile test was 25%.
Five years ago, GSI, an oil services company headquartered in Texas, issued $10 million worth of 12% 30-year bond with the dividend payable quarterly. The bonds have a call date of this year if GSI decides to take advantage of it.
Write down any four challenges that are faced by researchers in nanotechnology?
The flowrate Q over a rectangular sharp crested weir depends on the width of the notch b, the head on the weir H, and the acceleration due to gravity g. Find how many dimensionless parameters govern this problem.
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