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26 Nov 2019
In a high-energy collision between a cosmic-ray particle andaparticle near the top of Earth's atmosphere, 128 km abovesealevel, a pion is created.The pion has a total energy E of 1.81x105 MeV and is traveling vertically downward. Inthepion's rest frame, the pion decays 35.0 ns after its creation.Atwhat altitude above sea level, as measured from Earth'sreferenceframe, does the decay occur? The rest energy of a pion is139.6 MeV.
In a high-energy collision between a cosmic-ray particle andaparticle near the top of Earth's atmosphere, 128 km abovesealevel, a pion is created.The pion has a total energy E of 1.81x105 MeV and is traveling vertically downward. Inthepion's rest frame, the pion decays 35.0 ns after its creation.Atwhat altitude above sea level, as measured from Earth'sreferenceframe, does the decay occur? The rest energy of a pion is139.6 MeV.
Reid WolffLv2
26 Nov 2019
