One light-year (ly) is about _____

A) 23,000 AU
B) 34,000 AU
C) 56,000 AU
D) 63,000 AU


D

Physics & Space Science

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The average distance from Earth to the Sun is called the__________

A) astronomical unit B) light-year C) radius of curvature D) focal length

Physics & Space Science

An example of igneous rock is

a. marble. b. shale. c. slate. d. granite.

Physics & Space Science

If n = 5, which one of the following is not an allowed magnetic quantum number?

A) 0 B) 2 C) 3 D) 4 E) 5

Physics & Space Science

A(n) _____ is a model of the Universe with the Sun at the center, such as the Copernican universe

A) geocentric universe B) concentric universe C) heliocentric universe D) eccentric universe

Physics & Space Science