Lifetime as gauged by an observer at rest on earth

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The lifetime of a pi meson in its on frame of reference is2.6* 10^-8 sec. If the meson moves by a speed of .99c, a) what is the lifetime as gauged by an observer at rest on Earth? b) How high would a 100m mountain be gauged in the meson's frame of reference?

Reference no: EM13665501

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Lifetime as gauged by an observer at rest on earth : The lifetime of a pi meson in its on frame of reference is2.6* 10^-8 sec. If the meson moves by a speed of .99c, a) what is the lifetime as gauged by an observer at rest on Earth? b) How high would a 100m mountain be gauged in the meson's frame of re..

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