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A simply supported wood beam AB with span length L= 4 m carries a uniform load of intensity q = 5.8 kN/m (see figure).
(a) Calculate the maximum bending stress σmax due to the load q if the beam has a rectangular cross section with width b = 140 mm and height h = 240 mm.
(b) Repeat (a) but use the trapezoidal distributed load shown in the figure part (b).
determine the number of discrete frequencies from the minimum to and including the maximum frequency that will appear
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Air at atmospheric pressure and a temperature of 25°C is in parallel flow at a velocity of 5 m/s over a 1m long flat plate that is heated with a uniform heat flux of 1250 W/m2. Assume the flow is fully turbulent over the length of the plate.
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