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The standard acceleration of gravity or standard acceleration of free fall, often called simply standard gravity and denoted by ɡ 0 or ɡ n, is the nominal gravitational acceleration of an object in a vacuum near the surface of the Earth. It is a constant defined by standard as 9.806 65 m/s 2 (about 32.174 05 ft/s 2).
The gravitational constant G is a key quantity in Newton's law of universal gravitation.. The gravitational constant is an empirical physical constant involved in the calculation of gravitational effects in Sir Isaac Newton's law of universal gravitation and in Albert Einstein's theory of general relativity.
The g-force or gravitational force equivalent is a mass-specific force (force per unit mass), expressed in units of standard gravity (symbol g or g 0, not to be confused with "g", the symbol for grams).
At a 400 km LEO altitude, the overall differential in g-force is approximately 0.384 μg/m. [20] [3] Gravity between the spacecraft and an object within it may make the object slowly "fall" toward a more massive part of it. The acceleration is 0.007 μg for 1000 kg at 1 m distance. Uniform effects (which could be compensated):
0G, 0-G may refer to: 0G, or Zero Generation, the mobile telephony for Mobile radio telephone; Zero gravity, an alternative term for weightlessness; Zero game, a state in game theory where neither player has any legal options; Zero grade, a type of Indo-European ablaut; Zero group, a type of mathematical trivial group; Zero Gravity Corporation
The portion of the mass that is located at radii r > r 0 exerts no net gravitational force at the radius r 0 from the center. That is, the individual gravitational forces exerted on a point at radius r 0 by the elements of the mass outside the radius r 0 cancel each other.
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This A310 Zero G aircraft is used also to realize commercial flights for public passengers in partnership between operator Novespace and the Avico company, under Air Zero G brand. [19] The aircraft has also been used for cinema purposes, with Tom Cruise and Annabelle Wallis filming for The Mummy in 2017. [20]