When used outdoors, photosensors should be aimed due _____.
a. north
b. south
c. east
d. west
a. north
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When two gears are in mesh, the larger is called the:
a. driven gear b. driving gear c. pinion d. gear
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What is a micrometer used for?
What will be an ideal response?
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Materials whose molecules arrange themselves into a crystal structure are bound together by:
A) full valence shells. B) covalent bonding. C) sharing valence electrons. D) all of these.
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Windchill factor is the cooling effect produced by a combination of temperature, wind, velocity, and/or air movement.