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The gravity g′ at depth d is given by g′ = g(1 − d/R) where g is acceleration due to gravity on the surface of the Earth, d is depth and R is the radius of the Earth. If the density decreased linearly with increasing radius from a density ρ 0 at the center to ρ 1 at the surface, then ρ ( r ) = ρ 0 − ( ρ 0 − ρ 1 ) r / R , and the ...
The publication of the law has become known as the "first great unification", as it marked the unification of the previously described phenomena of gravity on Earth with known astronomical behaviors. [1] [2] [3] This is a general physical law derived from empirical observations by what Isaac Newton called inductive reasoning. [4]
The point farthest from Earth's centre is the summit of Chimborazo [12] in Ecuador, at 6,384.4 km (3,967.1 mi) from Earth's centre; the peak's elevation relative to sea level is 6,263.47 m (20,549 ft). [e] Because Earth is an oblate spheroid rather than a perfect sphere, it is wider at the equator and narrower toward each pole. Therefore, the ...
Elevation is the vertical distance above the reference geoid, an equipotential gravitational surface model of the Earth's sea level. Table of elevation extremes by geographic region [ edit ]
Unnamed location on Lagos Island: −0.2 m −0.7 ft: 2419 m 7,937 ft Niue: Unnamed location near Mutalau on Niue: 68 m 223 ft South Pacific Ocean: sea level 68 m 223 ft Norfolk Island: Mount Bates: 319 m 1,047 ft South Pacific Ocean: sea level 319 m 1,047 ft Northern Mariana Islands: Mount Agrihan on Agrihan: 965 m 3,166 ft North Pacific Ocean ...
This is a list of lists of places considered the most extreme by virtue of meeting some superlative geographical or physical criterion – e.g. farthest, highest, lowest, greatest, or least. Earth [ edit ]
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At a fixed point on the surface, the magnitude of Earth's gravity results from combined effect of gravitation and the centrifugal force from Earth's rotation. [2] [3] At different points on Earth's surface, the free fall acceleration ranges from 9.764 to 9.834 m/s 2 (32.03 to 32.26 ft/s 2), [4] depending on altitude, latitude, and longitude.