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Air flows into a convergent-divergent nozzle with an exit area of 1.59 times the throat area of 0.005 m2. The inlet stagnation state is 1 MPa, 600 K. Find the back pressure that will cause subsonic flow throughout the entire nozzle with M = 1 at the throat. What is the mass flow rate?
A 20-lb package is thrown with a speed of 9 ft/s onto the 100-lb cart at the given angle of 30 degrees. It slides on the smooth cart and strikes the spring. If the spring has a spring constant k= 200 lb/in
All drawings shall be composed on 18" X 24" Mylar/Vellum paper; each drawing shall be executed at the same scale, shall be selected on the basis of their prescriptive possibilities, shall be composed on a graphic design grid system
Calculate and compare the ozone concentration in ug/m^3 for a polluted day in Mexico City (210 ppbv ozone, 30 C, 0.77 atmospheres pressure) and the ozone concentration in the stratosphere (8 ppmv ozone at 30 km). Use the Standard Atmosphere to get pr..
Determine the normal and critical depth for a 4-m-wide rectangular channel with a discharge of 100 m3/sec. The cannel is made of concrete and the slope is 1.0 percent. Also determine the flow classification (critical, subcritical or supercritical)
Calculate the depth of flow upstream of the bridge assuming that the pier coefficient of drag is 1.2. Drag Force CD Af (V1^2)/2 CD=1.2
For the loading sown, use double integration method to determine: the equation of the elastic curve for the cantilever beam, the deflection at the free end and the slope at the free end.
What type of exercise takes place in a classroom setting arranged to look like an emergency operations center or in an actual emergency operations center, and involves simulation using written, telephone, and radio messaging.
A frictionless piston-cylinder contains 2kg of nitrogen at 100 kPa absolute and 300 deg K. The system is compressed polyprotically at a 1.4 exponent (n) until the nitrogen reaches a final temperature of 360 deg K.
The slope of the hill is such that for each mile (5280 ft) of horizontal distance, the change in elevation is Δz. Determine the maximum value of Δz if the flow is to remain laminar and the pressure all along the pipe is constant.
Given that the average power plant produces 667 MW of electricity per year, there are 492 coal plants in the US, and a solar constant of 1.361 KW/m^2, how large of an area would one need to cover with solar cells
The flowrate through an open channel with a slope of 2 % is calculated using Manning's equation at 100 cubic feet per second. If the slope of the channel is doubled to 4%
A tangent section of highway has a -1.0% grade and ends at station 4+75 and elevation 82 ft. It must be connected to another section of highway that has a -1% grade and that begins at station 44+12 and elevation 131.2 ft.
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