Find the complex power delivered by vs to the network in Fig. 11.69. Let vs = 100cos2000t V.
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The mechanical drawing sheet identified by the letter ____ is 11" by 17".
A. A B. B C. D D. E
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Problem 1.67 Link BC is 6 mm thick and is made of a steel with a 450-MPa ultimate strength in tension. What should be its width w if the structure shown is being designed to support a 20-kN load P with a factor of safety of 3?
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The subsequent problems deal with the circuit below where the op amps are LM741's powered by a ±15 V power supply. Assume R1 = R2 = R3 = R4 = R. Assume the op amps are ideal.
If V2 = 2 V, the current output by op amp 2 is
A. 2 / R B. 2 / 3R C. 1 / R D. 0 E. 3 / R
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What type of head do most sheet-metal screws have?
A) Round head B) Hex head C) Pan head D) Countersunk head
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