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Que 41 & Short anserwer these questions [Sm] a) What is mean't by adecular state?is a light year?AnsWhat isal8 |
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Answer» The light-year is a unit of length used to express astronomical distances and is equivalent to about 9.46 trillion kilometres (9.46×1012 km) or 5.88 trillion miles (5.88×1012 mi).[note 1] As defined by the International Astronomical Union (IAU), a light-year is the distance that light TRAVELS in VACUUM in one Julian year (365.25 DAYS).[2] Because it includes the word "year", the term light-year MAY be misinterpreted as a unit of time.[3] |
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