Answer to Question #147942 in Physics for Hihi

Question #147942

Calculate the mass of Earth. Given, the force that Earth exerts on a
mass (m) of 1 kg at its surface is 9.8 N. The radius of Earth ( R ) is
6. 4 × 10⁶ m.

Expert's answer

"g=\\frac{GM}{R^2}\\\\\\frac{(6.67\\cdot10^{-11})}{(6.4\\cdot10^{6})^2}M=9.8\\\\M=6.0\\cdot10^{24}kg"

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