escape speed

Japanese translation: 脱出速度(または第二宇宙速度)

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English term or phrase:escape speed
Japanese translation:脱出速度(または第二宇宙速度)

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03:17 Sep 23, 2008
English to Japanese 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.

Example sentence(s):
  • 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
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脱出速度(または第二宇宙速度)
Definition:
人工衛星の軌道(きどう)は加速する「速度」「方向」などによって変化します。地球から水平に秒速約7.9kmで打ち出すと、地球を円軌道で回る人工衛星となります。そのために必要な速度を「第1宇宙速度」といいます。打ち出し速度を11.2kmにすると地球の重力を脱出して太陽のまわりを回る軌道にのり、この速度を「第2宇宙速度」または「脱出速度」といいます。
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MKStar
United States
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Summary of translations provided
4 +2脱出速度(または第二宇宙速度)
MKStar


  

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3 days 1 hr   confidence: Answerer confidence 4/5Answerer confidence 4/5 peer agreement (net): +2
脱出速度(または第二宇宙速度)


Definition from jaxa:
人工衛星の軌道(きどう)は加速する「速度」「方向」などによって変化します。地球から水平に秒速約7.9kmで打ち出すと、地球を円軌道で回る人工衛星となります。そのために必要な速度を「第1宇宙速度」といいます。打ち出し速度を11.2kmにすると地球の重力を脱出して太陽のまわりを回る軌道にのり、この速度を「第2宇宙速度」または「脱出速度」といいます。

Example sentence(s):
  • 人工衛星の軌道(きどう)は加速する「速度」「方向」などによって変化します。地球から水平に秒速約7.9kmで打ち出すと、地球を円軌道で回る人工衛星となります。そのために必要な速度を「第1宇宙速度」といいます。打ち出し速度を11.2kmにすると地球の重力を脱出して太陽のまわりを回る軌道にのり、この速度を「第2宇宙速度」または「脱出速度」といいます。 - JAXA  
MKStar
United States
Local time: 07:04
Native speaker of: Japanese
PRO pts in category: 8

Votes in favor of/against selecting this as the best translation of the term asked
Yes  zipang: 地球の重力圏を"脱出"するという意味で「脱出速度」と呼ばれる。[Wikipedia]
6 days

Yes  mplant
47 days
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