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Title: An astronomical unit (AU) isA)a unit of time equal to the time taken for light to travel from the ... Post by: doit_the_clown on Mar 16, 2017 An astronomical unit (AU) is
A) a unit of time equal to the time taken for light to travel from the Sun to the Earth. B) a standard unit of length, defined as the wavelength of light from krypton gas. C) a unit of length, the average distance between the Sun and the Earth. D) a unit of mass equal to one solar mass. Title: Re: An astronomical unit (AU) isA)a unit of time equal to the time taken for light to travel from ... Post by: papachulo on Mar 16, 2017 Content hidden
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