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Author Question: Explain how the essential features of special relativity imply that a beam of light from a fast ... (Read 5 times)

yoooooman

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on: Jul 27, 2018
Explain how the essential features of special relativity imply that a beam of light from a fast moving spaceship will always be observed to moving at the speed of light.
 
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Question 2

What are the three possible outcomes of stellar evolution? Describe each possibility, differentiating their means of formation and their subsequent properties. Which stars on the Main Sequence are thought to end up in each of these forms?
 
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skipfourms123

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Reply #1 on: Jul 27, 2018
Answer to Question 1

The essential features are: The laws of physics are the same everywhere, there is no absolute motion, and time is a separate dimension. In order for the laws of physics to be the same everywhere, the speed of light is a constant of nature. That means that it will always be the same independent of the motion of the source or observer.

Answer to Question 2

If less than 1.4 solar masses the final stage of a star's life will be a white dwarf. This forms as a remnant of a red giant which has blown off a planetary nebula. At 1.4 to 3 solar masses, the remnant will be a neutron star. This is generally the result of a Type II supernova explosion. Above three solar masses, the collapse produces a black hole.


yoooooman

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Reply 2 on: Jul 27, 2018
YES! Correct, THANKS for helping me on my review

mjenn52

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Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

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