Question

The radius of the earth is 6.4*10^6m and the value of g on the earth's surface is 9.8m s^-2.Calculate the mass of the earth.Given that G=6.7*10^-11 N m^2 kg^-2.​

Answer 1

Answer:

To calculate the value of g:

M = 6 × 1024 kg, and radius of the earth, R = 6.4 × 106 m. 6.7 10-11 N m2 kg-2 6 1024 kg / (6.4 106 m)2 = 9.8 m s–2. Thus, the value of acceleration due to gravity of the earth, g = 9.8 m s–2.

Earth: 5.98 1024

Moon: 7.36 1022

Explanation:

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