Sunday, January 30, 2011

Mastering Physics: The Empire Strikes Back

(a=nb in the figure ).
Part A
How fast, relative to an observer, does an Empire ship have to travel for its markings to be confused with those of a Federation ship? Use c for the speed of light in a vacuum.


The starships of the Solar Federation are marked with the symbol of the Federation, a circle, whereas starships of the Denebian Empire are marked with the Empire's symbol, an ellipse whose major axis is n times its minor axis

 
 
 
 
Express your answer in terms of n and c.
ANSWER:


c\sqrt{1-\frac{1}{n^{2}}}
Correct




2 comments: