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A proton (mp=0.94 GeV/c2 ) is traveling in positive x-direction with a kinetic energy of 3.3...

A proton (mp=0.94 GeV/c2 ) is traveling in positive x-direction with a kinetic energy of 3.3 GeV . (a) Calculate the proton’s momentum (in GeV/c) and speed (in c). (b) When viewed by an observer traveling in the positive x-direction with a speed of 0.9c, what is the protons speed (in c) and kinetic energy (in GeV )? (Hint: Start by transforming the proton’s speed into the observer’s frame)

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