A(n) _____ is a closed curve around two points called the foci, such that the total distance from one focus to the curve and back to the other focus remains constant
A) ellipse
B) equant
C) deferent
D) paradigm
A
Physics & Space Science
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Center of Mass: There must be equal amounts of mass on both sides of the center of mass (or center of gravity) of a system.
A. True B. False
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Why does the Moon appear bigger near the horizon?
A. due to refraction B. due to an optical illusion C. due to the compression produced by Earth's atmosphere D. due to reflection
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Wien's law can only tell us about the surface temperature of a star, not the temperatures of the star's interior.
Answer the following statement true (T) or false (F)
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The subduction zone of converging oceanic plates is
marked by a)isolated volcanic mountains such as the Hawaiian Islands. b) a deep oceanic trench. c) a fold mountain range. d) the Moho discontinuity.
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