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A single stream tube is selected to characterize the air flow past the wing of an aircraft in flight at an altitude of 20,000 ft at an airspeed of 275 ft/s. The free stream crosssectional area of the stream tube is 0.07 ft 2 .
(a) What is the air flow speed in the stream tube at a location near the wing where the cross-sectional area of the stream tube is 0.05 ft 2? What is the static pressure at this location?
(b) What is the air flow speed in the stream tube at a location near the wing where the cross-sectional area of the stream tube is 0.04 ft 2? What is the static pressure at this location?
A gas inside a piston-cylinder device completes a three-step forward cycle, called the Lenoir cycle, described as follows: Complete a thermodynamic analysis of this cyclic process defining the system as the gas and neglecting any effect of friction. ..
find the response of a generic undamped spring-mass system subjected to a square pulse ftf0 for 0letltt0 and 0 for
Air, an ideal gas, is isentropic ally compressed from V1 = .36 ft^3, P1 = 14.5 psia, T1 = 70 F, to V2 = .03 ft^3 (compression ratio = 12). Find T2, P2 and W (work in Btu) for this process:
Suppose this torque acts at a moment arm of 15 cm and is to be measured with the deflection of a cantilever beam having a nominal deflection of 1.0 cm. Specify suitable design dimensions for a beam to accomplish this measurement.
would it be a possible to use a normal domestic refrigerator as a heat source for a small hot tub or whirlpool? if so
consider the heating of an incompressible fluid with velocity um inside a thin - walled tube. the diameter of the tube
A ship A is travelling at a speed of 30 km h 1 in a direction 60 ° south of east. A second ship B is sighted which is travelling at 20 km h 1 in a direction 30 ° east of north. What is the apparent velocity of ship B when viewed from ship A?
Consider the chip cooling scheme of Problem 3.146, but with an insulated top wall placed at the pin tips to force airflow across the pin array.
Superheated steam at 400°C and saturated water with a quality of 40% enter a mixing chamber at a pressure of 100 kPa. What is the required ratio of mass flow rate of superheated steam to mass flow rater of saturated water if at the exit to the mixing..
A column has the dimensions shown in the diagram below. What is the minimum length of the column at which buckling is likely to occur. If the column is the length determined in (a)
Major floor loadings in a shop are caused by the weights of the objects shown. Each force acts through its respective center of gravity G. Locate the center of gravity (x, y) of all thesecomponents.
Air undergoes a poly tropic process in a piston-cylinder assembly from P1 = 1 atm, T1 = 70ºF to P2 = 3 atm. Employing the ideal gas model with constant specific heats at 80ºF, determine the work and heat transfer per unit mass, in Btu/lbm, if
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