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The thrust developed by the engine of a Boeing 777 is about 380 kN. Assuming choked flow in the nozzles, determine the mass flow rate of air through the nozzle. Take the ambient conditions to be 265 K and 85 kPa.
Colette Lake has a surface area of 103 ha and a mean depth of 8 m. The pH of the water is 7.6. The lake receives surface water from a lake upstream, rainfall, and diffuse groundwater input. Atmospheric inorganic N deposition is insignificant.
Two chambers, A and B both have manometers with the same fluid with specific gravity 1.4. When h(sub a) = 6 cm and h(sub b) = 4 cm, what is the gage pressure in chamber A
Water occupies the bottom 0.8 m of a cylindrical tank.On top of the water is 0.3 m of kerosene, which is open to the atmosphere. If the temperature is 20 degrees C, what is the gage pressureat the bottom of the tank
Find the cooling load (in tons of refrigeration) for a room supplied with 10,000 CFM of 95 DB outside air with ratio of 105 gr/lb. The room is to be maintained at 78 DB and humidity ratio of 71.5 gr/lb.
describe how would you develop a subcontracting plan for the construction of a small child care center
The incident solar readiation (energy from the sun) on a particular day is at the rate of 100 Btu/hr for each square foot of area. Consider a solar collector with an area of 50ft^2 that concentrates the energy it collects in sucha manner that a regio..
Write all code necessary to dynamically allocate an array of 10 double-precision, floating-point variables and then write the code that will de-allocate the memory. Add comment fields to each line of code describing what it is and does.
Select the number and size of reinforcing bars required to resist a total factored moment of 180 ft. kips for a rectangular section with b = 12 in., d = 19.5 in., h = 24 in., f'c = 4 ksi, and fy = 60 ksi.
The bottom of a rectangular flume is 5m above reference level. The depth of the water in the flume is 3m. The average velocity is 1.7m/s. Compute the hydraulic energy at the surface of the water and at the bottom of the flume.
Assume that a gallon of gas contains 114,000 BTUs of energy and that a brilliant engineer has created an 80 percent efficient solar cell. Find the area (in square smoots and in square feet) that an array of these solar cells
In a hydrometer test, the data recorded at 60 minutes after the start of the test are as follows: Gs = 2.6, temperature of water T = 24°C and L = 9.2 cm. What is the diameter D of the smallest-sized particles
The door of an oven has 27.9lb weight that acts vertically through point D. The door is supported by a hinge at point A and two springs that are symmetrically located on each side of the door.
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