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1. A rectangular wing with an aspect ratio of 6 is to generate 1000 lb of lift when it flies at a speed of 200 ft/s. Determine the length of the wing if its lift coefficient is 1.0.
2. A 1.2-lb kite with an area of 6 ft2 flies in a 20-ft/s wind such that the weightless string makes an angle of 55° relative to the horizontal. If the pull on the string is 1.5 lb, determine the lift and drag coefficients based on the kite area.
Using Castigliano's theorem, find the deflection in the vertical direction for pin A of the truss in Fig. 3.25.
a gear of mass 2.5kg rotates ar 1500rpm.due to an error in manufacture the centre of gravity of the wheel is displaced 0.5mm from the axis of rotation. calculate the out of balance force.
Using the data in Problem , Meredith and Smunt Manufacturing expects sales of pumps to grow by 10% next year. Compute next year's sales and the sales for each quarter.
It is desired to limit the centerline deflection of the spandrel beam (Fig. 4.41) to (1/288)L, where L is the length. Expressed in terms of the usual beam parameters (E,I,L,P), how small must the load P be so as not to violate the constraint? .
a thermocouple located at the center of a long circular duct with a 10cm diameter has a spherical bead of 2mm diameter.
Do all properties of composites always improve over their individual constituents? Give examples.
find the image region in the w plane
the jmh company manufactures resistors with an ideal resistance value of 400 ohms. a sample of 2000 resistors were
How did the Roman way of waging war contrast with the Greek way? What was accomplished by strategic bombing during World War II? What costs were borne by the nations that employed it?
a mechanic got a 4.2l 6-cylinder engine from a 1966 british sports car. it is known that the original compression ratio
the pressure in a partially evacuated enclosure is 26.8 in hg vacuum when the local barometer reads 29.5 in hg.
Select a pair of structural steel channels mounted back to back to support the loads in such a way that the deflection at midspan will not exceed 1/ 16 in and the maximum stress will not exceed 6 kpsi. Use superposition.
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