The strength of the gravitational field of a source mass can be measured by the magnitude of the acceleration due to gravity at a field point. thus the gravitational field strength at a point depends on the distance from the source mass. for this problem assume that earth’s mass is concentrated at its center and that earth has a radius of re = 6,378 km at sea level and a mass of me = 5.972×1024 kg. ignore any forces due to earth’s rotation or due to other astronomical bodies.

9.79211 m/s²

Explanation:

M = Mass of the Earth =  5.972 × 10²⁴ kg

G = Gravitational constant = 6.67 × 10⁻¹¹ m³/kgs²

r = Radius of Earth = 6378000 m

The acceleration due to gravity is 9.79211 m/s²

For any distance above the Earth's surface h

the earths atmosphere is made up of nitrogen and oxygen. solids can turn into gasses through a process called sublimation. sublimation is the transition of a substance directly from the solid to the gas phase, without passing through the intermediate liquid phase.

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