A channel iron crossmember weighs 3 1/4 pounds per foot. What is the weight in pounds of three crossmembers, each 1 1/2 feet long?

A. 13 1/8
B. 14 5/8
C. 15 1/4
D. 16 1/2


Answer: B

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The European great powers welcomed a civil war in the United States for all of the following reasons EXCEPT

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What are two principal criteria by which an element can be judged essential to any plant?

What will be an ideal response?

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In which of the following applications would fiberglass duct not be acceptable?

a. Kitchen exhaust ducts b. Supply air ducts for an oil-fired furnace c. Supply air ducts for a gas-fired furnace d. Vertical risers in a single-story home

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When an op amp is used as a voltage-to-current converter, the load is connected in the feedback loop and the input signal is connected to the non-inverting input

Indicate whether the statement is true or false

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