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A 500 mm diameter galvanized steel (smooth) straight duct section conveys air at 2000 L/s. It is 21 m long.
a. Determine the pressure loss, in Pa/m.
b. Determine the average velocity of air flowing through the duct.
c. Identify a rectangular duct section with an equivalent pressure loss that has a side depth of 300 mm.
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Two points on a stress-strain curve for a material are σ = 278 MPa at ε = 0.08 and σ = 322 MPa at ε = 0.16. A. Find K and n in the power-law approximation and predict σ at ε = 0.20.
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