Which of the following values is closest to a perfect vacuum?

a. 50 microns
b. 500 microns
c. 1,300 microns
d. 25,000 microns


a. 50 microns

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Es mejor aplicar los traslapos autoadhesivos _____.

a. por debajo de temperaturas bajo cero b. a temperatura ambiente c. por encima de los 120 °F (48,88 °C) d. entre 120 °F (48,88 °C) y 150 °F (65,55 °C)

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Which of the following measurement tools should be used for very precise measuring?

A. Machinist's rule B. Tape measure C. Yardstick D. Micrometer

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A pF is equivalent to

A. 10?12 F B. 10?9 F C. 10?15 F D. 10?3 F E. 10?6 F

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In an effort to save money for early retirement, an environmental engineering colleague plans to deposit $1200 per month, starting 1 month from now, into a fixed rate account that pays 8% per year, compounded semiannually. How much will be in the account at the end of 25 years?

What will be an ideal response?

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