College Physics
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ISBN: 9781305952300
Author: Raymond A. Serway, Chris Vuille
Publisher: Cengage Learning
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A neutral π -meson is a particle that can be created by accelerator beams. If one such particle lives 1.40 x 10^-16s as measured in the laboratory, and 0.840 x 10^-16s when at rest relative to an observer.
a) What is its velocity relative to the laboratory?
b) What is kinetic eneryu of the meson? (meson has a rest mass of 135.0 MeV/c2 )
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