A neutral π -meson is a particle that can be created by accelerator beams. If one such particle lives 1.40×10−16 s as measured in the laboratory, and 0.840×10−16 s when at rest relative to an observer, what is its velocity relative to the laboratory?
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A neutral π -meson is a particle that can be created by accelerator beams. If one such particle lives 1.40×10−16 s as measured in the laboratory, and 0.840×10−16 s when at rest relative to an observer, what is its velocity relative to the laboratory?
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