1.

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

Answer»

Given, 

Mass of the earth = 5.97 × 1024 kg 

Mass of the moon = 7.35 × 1022 kg 

Now, 

Mass of the earth = 5.97 × 1024 = 5.97 × 10(2+22) = 5.97 × 102 × 1022 = 597 × 1022 

So, 

We can also Wright the mass of the earth as 597 × 1022 kg 

Sum of the masses of the earth and the moon; 

= (597 × 1022) + (7.35 × 1022) = (597+7.35) × 1022 = 604.35 × 1022 kg 

= 6.0435 × 100 × 1022 = 6.0435 × 102 × 1022 = 6.0435 × 10(2+22) = 6.0435 × 1024 kg


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