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An engineering component is made of 7075-T6 aluminum that has 469 MPa in yield strength. If this component is subjected to the following state of stress, determine the safety factor against yielding by the maximum shear stress criterion. s(sigma)x = 100, s(sigma)y = 140, s(sigma)z = -60, txy = 80, tyz = 0, tzx = 0 (MPa).
underground water is to be pumped by a 70 percent efficient 3 kw submerged pump to a pool whose free surface is 30 m
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in state and national forests it is common to store water in large water towers for reserve in the case of forest
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