N
Nicole C
Guest
...observed with a speed such? Our galaxy is 10^5 light years across and the most energetic cosmic ray proton are observed with a speed such that they have a relativistic mass of about 10^10 times the rest mass of a resting proton.
Determine how long it would take these energetic protons to transverse our galaxy as measured in reference of the galaxy AND the proton.
Determine how long it would take these energetic protons to transverse our galaxy as measured in reference of the galaxy AND the proton.