An unstable particle of mass m decays in time t = 10^-10 s in its own...
An unstable particle of mass m decays in time t = 10^-10 s in its own rest frame. If its energy is E = 1000 mc^2 in the lab, how far (in meters) will it move before decaying?
(Answer: 30 m)
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An unstable particle of mass m decays in time t = 10^-10 s in
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