College Physics (10th Edition)
10th Edition
ISBN: 9780321902788
Author: Hugh D. Young, Philip W. Adams, Raymond Joseph Chastain
Publisher: PEARSON
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Chapter 27, Problem 6P
The negative pion Π− is an unstable particle with an average lifetime of 2.60 × 10−8s (measured in the rest frame of the pion). (a) If the pion is made to travel at very high speed relative to a laboratory, its average lifetime is measured in the laboratory to be 4 20 × 10−7s. Calculate the speed of the pion expressed as a fraction of c. (b) What distance, as measured in the laboratory, does the pion travel during its average lifetime?
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College Physics (10th Edition)
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Length contraction: the real explanation; Author: Fermilab;https://www.youtube.com/watch?v=-Poz_95_0RA;License: Standard YouTube License, CC-BY