The diameter of the solar system is light hours. A spaceship crosses the solar system in hours, as measured on earth. How long, in hours, does the passage take according to passengers on the spaceship?
In hours does the passage take according to passengers on the spaceship.
We need to find time, in hours, does the passage take according to passengers on the spaceship.
The rocket's velocity is given as :
So, the time measured from earth is :
The star Alpha goes supernova. Ten years later and 100 ly away, as measured by astronomers in the galaxy, star Beta explodes.
a. Is it possible that the explosion of Alpha is in any way responsible for the explosion of Beta? Explain.
b. An alien spacecraft passing through the galaxy finds that the distance between the two explosions is 120 ly. According to the aliens, what is the time between the explosions?
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