百度试题 结果1 题目A light year is the distance travelled by light in how many Earth years?相关知识点: 试题来源: 解析 1 反馈 收藏
One Light Year:One light year is a measurement of distance, and it refers to the distance light travels in one Earth year. More specifically, one light year is equivalent to 5.88 trillion miles or 9.46 trillion kilometers. For example, the Earth is about 320 light years away from the ...
It takes a long time for light to travel through space. It can be said that the night sky is not what it appears to be.The light from the stars that you see is really thousands of years old. It took a long time for the light just to get to the earth. AlphaCentauri(半人马阿尔发...
On October 8, 2005, a disastrous earthquake struck the Kashmir region. The earthquake measured 7.6, followed by many aftershocks, and slides, and falling rocks. The seriousness of the damage and the high number of deaths were...
How fast is a light year? The Speed of Light: The speed of light is approximately 186,000 miles per second, or approximately 300,000 kilometers per second. It is the fastest that anything in the universe can travel. Answer and Explanation:1 ...
The 94.to our sun is Alph a Centauri. It is over 95.away. 相关知识点: 试题来源: 解析 91. in one year 92. fastest 93. the earth 94. closest star 95. four light years 91.一光年是光走一年的距离。 在第一句话可以找到答案, 因此填in one year: 92.光速是宇宙中最快的速度。 在...
She moved from Russia many years ago and was surprised to see the abundance of food available(供应的丰富食物) in the supermarkets. And she found that people were buying more than they needed and throwing too much away. She advised some supermarkets to stop selling their food in bulk(批量) ...
A light year is a standard of measurement used by astronomers to describe huge distances in the Universe. The nearest star is 4.22 light years away. The center of the Milky Way is about 26,000 light years away. But how far is1 light year? A light year is the distance that light trave...
but mainly depending on disease control and medical resource management. Germany's Robert Koch Institute is one of the best clinical microbiology laboratories on earth, with a history of more than 100 years. If the epidemic spreads further, the Institute and the German government will work together...
How Many Full Moons in a Year? Most years have 12 Full Moons, one each month. However, ourcalendarisnot perfectly synchronizedwith astronomical events. Therefore, now and then, a year has 13 Full Moons. When this happens, at least one of those Full Moons is called aBlue Moon. ...