speed of light- the speed at which light travels in a vacuum; the constancy and universality of the speed of light is recognized by defining it to be exactly 299,792,458 meters per second light speed,c constant- a number representing a quantity assumed to have a fixed value in a specifie...
Based on the understanding of the "pure" spacetime and electromagnetic spacetime, we give out the reasonable explanation why the speed of light keeps constant and how the gravity is created among the matters. In addition, some practical applications of the concepts developed in this work are ...
结果1 题目In relativity, the speed of light is a ___. A. variable B. constant C. function of mass D. function of E. nergy 相关知识点: 试题来源: 解析 B。解析:在相对论中,光速是一个常量。不是变量,也不是质量或能量的函数。
A. value B. number C. amount D. figure 相关知识点: 试题来源: 解析 A。“value”有“数值;价值”的意思,“constant value”表示“恒定值”,在描述光速时常用“constant value”,A 选项符合。“number”侧重于数字;“amount”常指数量;“figure”更多指数字或图形,均不符合描述光速是恒定值的语境。
constant 读法constant读法 constant英[ˈkɒnstənt]美[ˈkɑːnstənt] n.常数;常量; adj.恒定的;不断的;不变的;固定的;重复的;连续发生的; 例句 The speed of light is an invariant constant. 光速是一个不变常数。 变形复数constants...
Mech 1. A crash test car of mass 1,000 kg moving at constant speed of 12 m/s collides completely inelastically with an object of mass M at time t = 0. The object was initially at rest. The speed u in m/s of the car-object system after the collision is given as a function ...
In the year 1905, Albert Einstein published the theory of special relativity, suggesting that nothing could move faster than the speed of light. What if any mortal could break that constant? Stretch it beyond its limits? Would human beings finally be abl
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cvt continuouslyvaria cvtc- cvts compressedvideot cvu constantvoltageun cvv2 number cvwkxam cw city water cw doppler radar cw radar cw-pumped dye laser cwarn mode cwe cwe computerworldexpo cwr cwtt cwy clearway cxa local control sta cxdtext translation d cxiujare en maj-tago cxj xinjiang xi...
结果1 题目The speed of light and the laws of physics ( ) constant. A. is B. are C. was D. were 相关知识点: 试题来源: 解析 B。本题考查主谓一致。“The speed of light and the laws of physics”是复数概念,所以谓语动词用 are。