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A particle lives for a short time before breaking apart into otherparticles. Suppose it is moving at a speed of 0.972c, and an observer who is stationaryin a laboratory measures the particle's lifetime to be 5.00 x 10^-8 s.

(a) What is the lifetime according to a hypothetical person who is riding along with the particle?

(b) According to this hypothetical person, how far does thelaboratory move before the particle breaks apart?

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