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Muons have a short average lifespan of 2.2 microseconds (in their rest frame). They are created upon impact of cosmic radiation with the upper atmosphere, and then travel to the surface of the Earth where they could be detected. (a) What is the average life span of muons flying at a velocity of 0.8c, measured by an observer on Earth? (b) How long would it take for a muon moving as fast as light to traverse the 50km between the where it is created and the surface of the Earth?

Muons have a short average lifespan of 2.2 microseconds (in their rest frame). They are created upon impact of cosmic radiation with the upper atmosphere, and then travel to the surface of the Earth where they could be detected. (a) What is the average life span of muons flying at a velocity of 0.8c, measured by an observer on Earth? (b) How long would it take for a muon moving as fast as light to traverse the 50km between the where it is created and the surface of the Earth?

Modern Physics
Modern Physics
3rd Edition
ISBN:9781111794378
Author:Raymond A. Serway, Clement J. Moses, Curt A. Moyer
Publisher:Raymond A. Serway, Clement J. Moses, Curt A. Moyer
Chapter1: Relativity I
Section: Chapter Questions
Problem 10P: The average lifetime of a pi meson in its own frame of reference is 2.6 × 10−8 s. If the meson moves...
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Muons have a short average lifespan of 2.2 microseconds (in their rest frame). They are created upon impact of cosmic radiation with the upper atmosphere, and then travel to the surface of the Earth where they could be detected. (a) What is the average life span of muons flying at a velocity of 0.8c, measured by an observer on Earth? (b) How long would it take for a muon moving as fast as light to traverse the 50km between the where it is created and the surface of the Earth?

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