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Earth radius (denoted as R 馃湪 or R E) is the distance from the center of Earth to a point on or near its surface. Approximating the figure of Earth by an Earth spheroid (an oblate ellipsoid), the radius ranges from a maximum (equatorial radius, denoted a) of nearly 6,378 km (3,963 mi) to a minimum (polar radius, denoted b) of nearly 6,357 km (3,950 mi).
Geodetic latitude and geocentric latitude have different definitions. Geodetic latitude is defined as the angle between the equatorial plane and the surface normal at a point on the ellipsoid, whereas geocentric latitude is defined as the angle between the equatorial plane and a radial line connecting the centre of the ellipsoid to a point on the surface (see figure).
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 ...
Average radius of Earth: 6.378 Mm Equatorial radius of Earth 6.6 Mm Approximate length of the two longest rivers, the Nile and the Amazon: 7.821 Mm Length of the Trans-Canada Highway: 9.288 Mm Length of the Trans-Siberian Railway, longest in the world
Objects must orbit Earth within this radius, or they can become unbound by the gravitational perturbation of the Sun. [163] Earth, along with the Solar System, is situated in the Milky Way and orbits about 28,000 light-years from its center. It is about 20 light-years above the galactic plane in the Orion Arm. [164]
Florida’s bowl chances are suddenly incredibly realistic after the Gators beat No. 22 LSU, 27-16. After LSU kicked a field goal to cut Florida’s lead to four with 5:18 to go, the Gators made ...
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The Earth and most of the planets in the Solar System, as well as the Sun and other stars, all generate magnetic fields through the motion of electrically conducting fluids. [54] The Earth's field originates in its core. This is a region of iron alloys extending to about 3400 km (the radius of the Earth is 6370 km).
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related to: radius of earth physics chart for kids free print art holly and mistletoe imagesIt鈥檚 an amazing resource for teachers & homeschoolers - Teaching Mama