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28.6 Exercise 26

Avg difficulty 2.5

What is the kinetic energy in MeV of a π\pi-meson that lives 1.40×10−16 s1 . \text{40} \times 10^{- \text{16}} \text{ s} as measured in the laboratory, and 0.840×10−16 s0 . \text{840} \times 10^{- \text{16}} \text{ s} when at rest relative to an observer, given that its rest energy is 135 MeV?

OpenStax College Physics 2e, 28.6 Relativistic Energy, exercise 26

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Adapted from College Physics © 2022 Rice University. Licensed under CC BY 4.0. Sources: College Physics 2e, College Physics for AP® Courses 2e. Imported at revision f98d7a7.