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A convergent nozzle with an exit diameter of 2 cm has an air inlet flow of 20?C, 101 kPa (stagnation conditions). The nozzle has an isentropic efficiency of 95%, and the pressure drop is measured to be a 50-cm water column. Find the mass flow rate, assuming compressible adiabatic flow. Repeat this calculation for incompressible flow
If a SS concrete beam, prestressed with a force of 2500 kn,effective span = 10m. It carries a load of 40 kN/m, the central dip of the cable profile should be
Calculate the distance traveled by the prey from the time it is dropped until the time it hits the ground. Express your answer correct to the nearest tenth of a meter.
A 32000 lb airplane lands on an aircraft carrier and is caught by an arresting cable. The cable is inextensible and is paid out at A and B from mechanisms located below deck and consisting of pistons moving in long oil-filled cylinders.
The mean annual precipitation for a 325 mi2 watershed is25 inches. Assume that 20% of the annual precipitation reachesthe watershed outlet as streamflow. Determine the meanstreamflow rate in ac-ft/yr
In determining the difference between points A and B, the inclined distance was measured to be 157.65 ft. The transit was set u on point A. The height of its transverse axis was 5.2 ft about point A.
Lake Pleasant, AZ, has a surface area of approximately 2,000 ha. The inflow for the month of August is zero. The lake is dammed so that no water leaves the impoundment downstream of the dam. There is no rain in August.
A 3-mi section of a two-lane, two-way highway located in a mountainous terrain is to be designed to carry a peak hour volume of 750 vehicles. Using the operational level of analysis
Determine the location e of the shear center, point O , for the thin-walled member having the cross section shown. The member segments have the same thickness t .
a simple random sample of 20 items from a normal population resulted in a sample mean of 17.25 and a sample standard devation of 3.3 a. develop a 90% confidence interval for the population mean. b. develop a 95% confidence interval for the populatio..
Determine the highest temperature that air can be heated by heat addition while the mass flow rate remains constant.
Compute the wet and dry density and degree of saturation of the consolidation test sample if the dry weight of the sample is 52.8 g. If the final water content is 59.6%, compute the degree of saturation and dry density at the end of concolidation
You are in charge of evaluating the safety (hazard) of a low water crossing. Traffic surveys show that the "Aaverage"vehicle using the crossing is semi-rectangular in shape (10 ft long, 5 ft wide, and 4.0 ft high - not including the distance from the..
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