One of the three rules, when used with Ohm’s law, that can be applied when solving for unknown electrical quantities in parallel circuits is that ____.

a. voltage remains the same
b. voltage adds
c. voltages multiplies
d. voltage subtracts


a. voltage remains the same

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Many Southerners saw employment in the textile mills as

A. high-wage positions. B. strictly short-term or temporary employment. C. a poor alternative to farming. D. institutions that broke up families. E. the only steady jobs and wages available.

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The purpose of a/an________________ is to help guide the track through the track rollers and to support part of the equipment weight.

A. bushing B. master link C. drive sprocket D. idler

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A tachometer is used to measure:

A) Air velocity. B) Wind speed. C) Energy use. D) Rotational speed.

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In the process of ____________________, green aquatic plants dissolve oxygen in water.

Fill in the blank(s) with the appropriate word(s).

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