When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. In our latest space mysteries piece we take a look at what would happen if you moved at the speed of light. (Image credit: Silver555 via Getty Images) In science fiction, people ...
Once you see the reality of that speed, you may rethink everything. "There are some important things you should probably know about approaching the speed of light," NASA's video,Guide to Near-light-speed Travel, explains. "First, a lot of weird things can happen, like time and space ge...
A. It is the fastest speed possible. B. It can be slowed down in certain conditions. C. It is always constant. D. It is only applicable in space. 相关知识点: 试题来源: 解析 B。选项 A 虽然光在真空中速度很快,但不能说它是最快速度可能,理论上可能有超光速现象未被发现;选项 B 在一些...
What is the speed of light in a vacuum? A. 300,000 kilometers per second. B. 30,000 kilometers per second. C. 3,000 kilometers per second. D. 300 kilometers per second. 相关知识点: 试题来源: 解析 A。解析:真空中的光速是 30 万千米每秒。选项 B、C、D 的速度都不正确。
What is the speed of light in a vacuum? A. 300,000 kilometers per second B. 200,000 kilometers per second C. 100,000 kilometers per second D. 50,000 kilometers per second 相关知识点: 试题来源: 解析 A。真空中光速是 30 万千米每秒。其他选项速度均不对。
百度试题 结果1 题目What is the speed of light in a vacuum?相关知识点: 试题来源: 解析 299,792,458 meters per second 反馈 收藏
百度试题 结果1 题目What is the speed of light in a vacuum? A. 299,792 kilometers per second B. 299,792 meters per second C. 299,792 miles per hour D. 299,792 feet per second 相关知识点: 试题来源: 解析 B 反馈 收藏
When you want to accelerate a particle of mass m at the CERN for example with a particle accelerator, the mass m will not change considering the particle frame. The particle could be a Neutrinos like in the OPERA expriment in the CERN, where they reach to have a speed...
Gosh! My weight is out of control. (我体重又胖了。) 3.any idea… 你知不知道 例句:Excuse me, any idea what time it is? (劳驾,你知不知道几点了?) Any idea when the mall will be closed? (你知不知道那个商店几点关门?) Any idea why Lara is not here? (你知不知道劳为什么不在这?)...
Stressisastateofmentaloremotionalfatigue(疲劳). 2 Thisisthereasonwhywefailto rememberorlearnnewthingswhenwearementallystressed.Topreventstress-relatedlossof memoryandlearningability,onehastofindthefactorsthatincreasestressandanxietyanddeal withthem. Ifyouexerciseonaregularbasis,yourbodywillbecomestrongerovertime....