解答几道英文版的关于时空、相对论的物理题,英语及物理界的高手来,1.Canyoutravelwhileremaininginoneplaceinspace?Explain.2.Doeslighttravelthroughspace?Throughtime?Throughbothspaceandtime?3.Whatdoesitmean

Question

解答几道英文版的关于时空、相对论的物理题,英语及物理界的高手来,
1.Can you travel while remaining in one place in space?Explain.
2.Does light travel through space?Through time?Through both space and time?
3.What does it mean to say that motion is relative?
4.The speed of a ball you catch that is thrown from a moving truck depends on the speed and direction of the truck.Does the speed of light caught from a moving source similarly depend on the speed and direction of the source?Explain.
5.What does it mean to say that the speed of light is a constant?
6.The ratio of velocity gain to time for a freely falling body is g.Similarly,what is the ratio of distance to time for light waves?

Answer 1

第一题,能在保持静止的情况下旅行吗?我觉得可以,因为运动是相对的,你在这个参考系下静止,在其他的参考系中可能是运动的.
第二题,光传播经过时间、空间吗?是的,应该既经过时间也经过空间.
3.运动是相对的是什么意思.也就是说找不到绝对的运动和绝对的静止,所有的运动都是相对于某一个参考系来说的.
4.光的速度能否叠加.答案是不能.光速恒定.
5.也就是说在不同参考系中,光速保持不变.
6.问你的实际是光速是多少.答案接近300000000m/s.