The average lifetime of a pi meson in its own frame of reference (i.e., the proper lifetime) is 2.6  10-8 s. (a) If the meson moves with a speed of 0.94c, what is its mean lifetime as measured by an observer on Earth?   (b) What is the average distance it travels before decaying, as measured by an observer on Earth?   (c) What distance would it travel if time dilation did not occur?

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Q: 21 The mean lifetime (half-life) of a pi meson in its own frame of reference is 26.0 ns. [This is…

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Q: The average lifetime of a pi meson in its own frame of reference (i.e., the proper lifetime) is 2.6…

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