Okay so the question is asking you about Nobel's brothers. Noble must have something really big or great and they are asking how his brothers helped his do what he did. They are also asking who you think helped Nobel more.
It made every one relze the new world
Answer:the answer is a
Explanation:took the test (:
Answer:
I don't understand your question
Explanation:
Einstein's two postulates of special relativity are as follows, 1. The principle of relativity: The laws of physics are the same in all inertial systems. ... The constancy of the speed of light: Observers in all inertial systems mea- sure the same value for the speed of light in a vacuum.