An Unstable Particle Is Moving at a Speed of 2

question 51

Short Answer

An unstable particle is moving at a speed of 2.6 × 10⁸ m/s relative to a laboratory.Its lifetime is measured by a stationary observer in the laboratory to be 4.7 × 10^-6 seconds.What is the lifetime of the particle,measured in the rest frame of the particle? (c = 3.00 × 10⁸ m/s)

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