Hipparchus devised the magnitude system in the late 1700's

a. True
b. False
Indicate whether the statement is true or false


False

Physics & Space Science

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Which of the following is true of natural selection?

A) It is a random occurrence. B) It does not occur in most species of organisms. C) It is directed by changes in the environment. D) It does not lead to evolution of a species.

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A car accelerates from to at a rate of How far does the car travel while accelerating?

A) 80.0 m B) 133 m C) 226 m D) 399 m

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The ____________________ is the point on the celestial sphere directly above an observer, regardless of where the observer is located on Earth

Fill in the blank(s) with correct word

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Which of the following telescopes must be used above Earth's atmosphere?

a. an optical telescope b. the VLBI telescope c. an x-ray telescope d. a radio telescope e. none of the above

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