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17:00 Nov 10, 2008
English to Romanian translations [PRO] Science - Astronomy & Space Additional field(s): Aerospace / Aviation / Space, Physics
English term or phrase:escape speed
Definition from physics.fortlewis.edu: The speed necessary for an object to escape the gravitational pull of an object. Anything that moves away from the object with more than the escape speed will never return.
When an object is traveling exactly at escape speed, it is in a parabolic orbit with the body at the focus of the parabola. A parabolic path is open; hence an object following such a path will never return to the body. Conservapedia
Black holes, having infinite density, have an infinitely large escape speed. But it turns out that the escape speed value depends on how far an object is from a body of mass. So there is a certain distance from a black hole where the escape speed just equals the speed of light. Are black holes real?
One somewhat counterintuitive feature of escape velocity is that it is independent of direction, so that "velocity" is a misnomer; it is a scalar quantity and would more accurately be called "escape speed". Space Wiki
Definition from Știință și tehnică: Newton: viteza de evadare din câmpul gravitational al unui corp ceresc este:
vesc = (2GM/R)1/2
Unde G este constanta universala a gravitatiei a carei valoare este de 6,673 x 10-11 m3 kg-1 s-2;
M este masa corpului de pe care dorim sa evadam;
R este raza acestuia.
Având în vedere că ipoteza existenței găurilor negre se bazează pe presupunerea că ar exista corpuri la suprafața cărora viteza de evadare să fie mai mare decât viteza luminii, - Astronomy
Ilinca Florea France Local time: 16:45 Native speaker of: Romanian PRO pts in category: 4
60 days confidence:
viteza de evadare
Definition from own experience or research: "Cand un corp zboara cu exact viteza de evadare, acesta este pe o orbita parabolica...." pentru fraza "When an object is traveling exactly at escape speed, it is in a parabolic orbit ..."
"Gaurile negre, care au o densitate infinita, sunt caracterizate de o viteza de evadare infinit mai mare." pentru fraza "Black holes, having infinite density, have an infinitely large escape speed." - ARE BLACK HOLES REAL
Victor Rush Romania Local time: 17:45 Native speaker of: Romanian PRO pts in category: 4
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