Determine the reactions and bar forces that are created in the truss in Figure P9.30 when the top chords (ABCD) are subjected to a 50°F temperature increase. Given: AE is constant for all bars, A = 10 in. 2 , E = 30,000 kips/in. 2 , and ? = 6.5 × 10 ?6 (in./in.)/°F.
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What will be an ideal response?
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What will be an ideal response?
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Convert 35.62' to builder's measure.
Fill in the blank(s) with the appropriate word(s).
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The full-wave, ac/dc converter shown in Figure 3.59 is operating under continuous current (conduction period = 180o ). The source voltage is 120 V (rms), and the load resistance is 2 ?. For an average load current of 40 A, calculate the triggering angle of the SCRs.
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