The chapter mentions the forces acting on elementary volume of the rotating Earth in an inertial frame and considers the second Newton's law in non-inertial system. It introduces the centrifugal force and gravitational field, as well as its potential. Special attention is paid to the ...
If the distance between the Earth and the Moon were to double, while the masses remained the same, the gravitational force would become ___. A. F/2 B. F/4 C. 2F D. 4F 相关知识点: 试题来源: 解析 B。引力与距离的平方成反比,距离变为 2 倍,引力变为原来的 1/4,答案是 B 选项...
A. raising the Moon into a higher orbit by about 3.8 centimeters per year B. the force along the line between the centers of both the Moon and the Earth C. a net transfer of energy from the Earth to the Moon D. the Earth's bulges slightly ahead of the point directly beneath the ...
(physics) the force of attraction between all masses in the universe; especially the attraction of the earth's mass for bodies near its surface 相似短语 gravitational force引力,地球引力,重力 mock gravitational force伪引力 non gravitational force非引力力 ...
Journal of the Franklin InstituteWilson, Raymond H., Jr.: A Gravitational Force Function for the Earth Repre- senting All Deviations From a Spherical Geoid. Franklin Inst. Jour.. ,. vol. 268, no. 5,. Nov. 1959, pp. 378-387.
Due to this gravitational force, the earth pulls any object towards its surface. Therefore, the direction of the weight of the object is towards the earth's center. Weight is a vector quantity.The weight of an object varies from place to place:...
The force of gravity makes things fall to earth. 地心引力使物体落向地面。 Gravity is a very weak attractive force. 地心引力是一种非常微弱的引力。 The stabilizer provides a counter force to the CG. 安定面提供一个反向力给重力中心。 Kinematics is defined as the study of motion without reference...
A gibbon is better adapted than a man for life in a lowgravitational force. 长臂猿比人更能适应在低重力场中生活. 互联网 展开全部 英英释义 Noun 1. (physics) the force of attraction between all masses in the universe; especially the attraction of the earth's mass for bodies near its surface...
C 正确答案:C 解析:根据文章第四段中的第二句“Although the Sun is larger than the Moon.The Moon is closerto Earth and,therefore,its gravitational force is approximately 2.2 times greater.”判断可知,地球对太阳和月球的引力大小是由它们与地球之间的距离决定的。反馈...
The gravitational force of the Sun and the Moon upon Earth depends on ___. A. the depth of the oceans B. their distance to Earth C. their size D. their weight 相关知识点: 试题来源: 解析 B 答案:B 解析:分析第三段可知,和月亮对地球的引力与其和地球的距离有关。反馈...