The mass of the sun is 2.0 x 1030 kg, and the mass of a hydrogen atom is 1.67 x 10-27 kg. If we assume that the sun is mostly composed of hydrogen, how many atoms are there in the sun?

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Units and Dimensions

These are generally defined as the terms which precede or describes the dimensions further. These are also further divided into two parts namely fundamental units and the derived units.