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In the spherical-coordinates example above, there are no cross-terms; the only nonzero metric tensor components are g rr = 1, g θθ = r 2 and g φφ = r 2 sin 2 θ. In his special theory of relativity , Albert Einstein showed that the distance ds between two spatial points is not constant, but depends on the motion of the observer.
The radii of these objects range over three orders of magnitude, from planetary-mass objects like dwarf planets and some moons to the planets and the Sun. This list does not include small Solar System bodies , but it does include a sample of possible planetary-mass objects whose shapes have yet to be determined.
Metal Gear 2: Solid Snake [b] is a 1990 action-adventure stealth video game [c] developed and published by Konami for the MSX2 computer platform. It serves as a sequel to the MSX2 version of the original Metal Gear, written and designed by series's creator Hideo Kojima, who conceived the game in response to Snake's Revenge, a separately-produced sequel that was being developed at the time for ...
The most prominent example of the classical two-body problem is the gravitational case (see also Kepler problem), arising in astronomy for predicting the orbits (or escapes from orbit) of objects such as satellites, planets, and stars. A two-point-particle model of such a system nearly always describes its behavior well enough to provide useful ...
The standard gravitational parameter μ of a celestial body is the product of the gravitational constant G and the mass M of that body. For two bodies, the parameter may be expressed as G ( m 1 + m 2 ) , or as GM when one body is much larger than the other: μ = G ( M + m ) ≈ G M . {\displaystyle \mu =G(M+m)\approx GM.}
This is defined as the distance from a satellite at which its gravitational pull on a spacecraft equals that of its central body, which is = /, where D is the mean distance from the satellite to the central body, and m c and m s are the masses of the central body and satellite, respectively. This value is approximately 66,300 kilometers (35,800 ...
The Moon's gravitational pull is the main driver of Earth's tides. In geophysical terms , the Moon is a planetary-mass object or satellite planet . Its mass is 1.2% that of the Earth, and its diameter is 3,474 km (2,159 mi), roughly one-quarter of Earth's (about as wide as the contiguous United States ).
An expanded edition, titled Metal Gear Solid 2: Substance, [c] was released the following year for Xbox and Windows in addition to the PlayStation 2. A remastered version of the game, Metal Gear Solid 2: Sons of Liberty - HD Edition, was later included in the Metal Gear Solid HD Collection for the PlayStation 3, Xbox 360, and PlayStation Vita.