依照文章第一段第二句“The energy set free by the collision created a ripple in the spacetime structure and spread outward in gravitational waves.”可知,引力波确实是在时空结构中产生的波浪。故选C项。 答案: C 细节理解题。根据文章第一段第二句“The energy set free by the collision created a ...
What is gravitational force? A. The force that repels objects. B. The force that makes objects transparent. C. The force that attracts objects towards each other. D. The force that makes objects glow. 相关知识点: 试题来源: 解析 C。解析:文章明确指出重力是吸引物体相互靠近的力。A 选项排斥...
To help visualize what is meant by a gravitational field we may use lines of force.下划线部分在句中做 ___。 A. 主语 B. 宾语 C. 状语 D. 定语 相关知识点: 试题来源: 解析 C 解析:“it”为动词“make”的宾语,“easier”为宾语补足语,“for us to take derivatives”为不定式复杂结构,作真正...
In less than 100 seconds, Ben Stappers of the University of Manchester in the UK explains how gravitational waves are the astrophysical equivalent of throwing a stone into a pond: they appear as ripples in space–time. He also explains that gravitational waves have been predicted to exist ...
space-time configurations/ mean gravitational fieldgeneral relativityMaxwell fieldperfect fluidscurved space-timesequation of stateThe equations of General Relativity are non-linear. This makes their averaging non-trivial. The notion of mean gravitational field is defined and it is proven that this field...
To help visualize what is meant by a gravitational field we may use lines of force.下划线部分在句中做 ___。 <br/> A、主语<br/> B、宾语<br/> C、状语<br/> D、定语
glassthatmagnifiesthelightformobjectsbehindit,aphenomenonknownasgravitationallensing (引力透镜效应).Earendelsitsonorclosetothatspaceripple,causingitto“popout”fromthe generalglowofitsgalaxybecausethephenomenonmagnifieditsbrightnessatleastathousand fold. Ininterviewsthisweek,severalscientistswhoarenotpartoftheEarendel...
Our moon is large enough to exert a gravitational pull that can be felt on Earth. The changing tides are the result of the moon's gravity pulling at Earth's water every day.Answer and Explanation: The gravitational constant on the moon is about 1.62 meters per second squared, much lower ...
What is a gravitational singularity? Gravitation: Gravitation is the fundamntal force of nature responsible for the formation and motion of celestial bodies, solar systems and galaxies. It is proportional to the product of the masses and inversely proportional to the square of the distance of the...
Mathematically, gravitational force can be represented as: F=Gm1m2r2 Here, F is the gravitational force. G is the universal gravitational constant. m1is the first body's mass. m2is the second body's mass. r is the distance between the two bodies. ...