The escape velocity from the earth is 11 km//s. The escape velocity from a planet having twice the radius and same density as that of the earth is (in km//s)
centre of the earth =. For a small displacement dx of the body against this force of gravity, work done =dx. Hence, the work done to displace the body from the earth’s surface to an infinite distance == GMm= If the escape velocity from the earth is ve, the initial kinetic energy ...
The escape velocity from the earth is V. What is the escape velocity from a planet whose mass and radius is twice those of the earth ?
如:He had a narrow escape from the car accident.(他在车祸中惊险逃脱。) 最后,“Escape velocity”指的是逃逸速度,是航天领域的一个重要概念。例如:The rocket needs to reach the escape velocity to leave the Earth's atmosphere.(火箭需要达到逃逸速度才能离开地球大气层。) ...
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必应词典为您提供escape-velocity的释义,na. 【物】(火箭)第二宇宙速度; 网络释义: 逃逸速度;脱离速度;逃脱速度;
of gravity. Escape velocity increases for planets and stars with more mass. It would be easier to launch something from the Moon than from Earth. For a black hole, which has infinite density, the escape velocity is greater than the speed of. This is whycan possibly escape from its gravity...
(General Physics) the minimum velocity that a body must have in order to escape from the gravitational field of the earth or other celestial body Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 200...
Kids Definition escape velocity noun : the lowest velocity that a moving body (as a rocket) must have to escape from the field of gravity of the earth or of a heavenly body and move outward into space More from Merriam-Webster on escape velocity Britannica.com: Encyclopedia article ...
The escape velocity of a body from earth is about 11.2 km/s. Assuming the mass and radius of the earth to be about 81 and 4 times the mass and radius of the moon, the escape velocity in km/s from the surface of the moon will be: ...