In the densest molecular clouds,the average density is approximately 300 atoms/cm3.If a cube of molecular cloud gas with this density contained 100 M⨀ of material (the amount needed to make a 1 M⨀ star),what would be the length of a side of the cube in units of AU? For reference,the mass of the Sun is 2 × 1030 kg,the mass of a hydrogen atom is 1.7 × 10−27 kg,and 1 AU = 1.5 × 1011 m.
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