An astronomical unit (au) is the average distance between earth and the sun. One au is equal to approximately 150,000,000 km. Astronomers also use light years to measure distance. A light year is approximately 9. 5×1012 km. Use scientific notation to rewrite the measure of one astronomical unit (1 au) in kilometers.
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An astronomical unit (au) is the average distance between earth and the sun. One au is equal to appr...
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