The roof beam of a building is subjected to the loading shown in Figure P7.16. If a 3?8-in. deflection is permitted at the cantilever end before the ceiling and roofing materials would be damaged, calculate the required moment of inertia for the beam. Use E = 29,000 ksi. Solve by the moment-area method. EI is constant.
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What determines the chemical properties of the elements?
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