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In a Common Rest Frame,event a Happens on Planet a and Event

Question 4

Multiple Choice

In a common rest frame,event A happens on planet A and event B occurs on planet B 100 y later.If the space time interval between these two events is 90 ly,how far apart are the 2 planets in their common rest frame?


A) 44 ly
B) 35 ly
C) 49 ly
D) 54 ly

Correct Answer:

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