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Question

Mass of earth is (5.97×1024) kg and mass of moon is (7.35×1022) kg. What is the total mass of the two?

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Solution

Mass of the Earth =5.97×1024 kg

Now, 5.97×1024=5.97×10(2+22)=5.97×102×1022=597×1022

So, the mass of the Earth can also be written as 597×1022 kg.
Mass of the Moon =7.35×1022 kg

Sum of the masses of the Earth and the Moon:

=597×1022+7.35×1022

=(597+7.35)×1022

=604.35×1022

=6.0435×100×1022

=6.0435×102×1022

=6.0435×10(2+22)

=6.0435×1024 kg


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