Question

difference beetween Atomic mass unit and astronomical unit​

Answer 1

Explanation:

Atomic mass unit or AMU is a unit used to measure the amount of mass in a substance (Sum of protons and neutrons generally) whereas astronomical unit or AU is a unit of distance. It's used to measure distance in the outer space. Ex - distance between planets, stars, galaxies , black holes, pulsers, etc.

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Answer 2

Explanation:

Definition: Astronomical unit. Theastronomical unit (AU or au or a.u. or sometimes ua) is a unit of length. It is approximately equal to the mean distance between the Earth and Sun. The currently accepted value of the AU is 149 597 870 691 + 30 metres (about 150 million kilometres or 93 million miles).