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The Mass of a Star Is 8

Question 31

Multiple Choice

The mass of a star is 8.0 × 1030 kg,and the mass of a hydrogen atom is 1.67 × 10−27 kg.If we assume that the star is mostly composed of hydrogen,approximately how many atoms are there in the star?


A) 1.3E+4 atoms
B) 2.1E-58 atoms
C) 4.8E+57 atoms
D) 8.0E+30 atoms

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