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4. Each π+ particle in a beam has a momentum of 800 MeV/c. How far will...

4. Each π+ particle in a beam has a momentum of 800 MeV/c. How far will the beam travel before approximately 10% of the π+ are left? The π+ rest energy and half-life (at rest) are 140 MeV and 18 nsec, respectively.

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genius_generous answered 1 year ago
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