うちゅうそくど
宇宙速度
1. escape velocity; orbital velocity; cosmic speed; space velocity
2. Escape velocityIn physics, escape velocity is the speed at which the kinetic energy plus the gravitational potential energy of an object is zero. It is the speed needed to "break free" from a gravitational field without further propulsion. For a spherically-symmetric body, escape velocity is calculated by the formula where G is the universal gravitational constant (G=6.67×10 m kg s), M the mass of the planet, star or other body, and r the distance from the center of gravity.
Read “Escape velocity” on English Wikipedia
Read “宇宙速度” on Japanese Wikipedia
Read “Escape velocity” on DBpedia
Read “Escape velocity” on English Wikipedia
Read “宇宙速度” on Japanese Wikipedia
Read “Escape velocity” on DBpedia
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