When using a pyrometer, the target being measured __________ completely fill the view of the instrument.
A. should
B. does not have to
Answer: A
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Standing at the edge of the roof of a tall building, you throw a ball upward with a velocity of 15 m/s (meters per second). The ball goes straight up and begins its downward descent just missing the edge of the building. The building is 40 m tall.
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Answer the following statement true (T) or false (F)
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Indicate whether the statement is true or false
Gears are unable to change direction of rotation.
Answer the following statement true (T) or false (F)