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(Include full solutions )Suppose a particle called a kaon with mass m is created by cosmic...

(Include full solutions

)Suppose a particle called a kaon with mass m is created by cosmic radiation striking the atmosphere. It moves by you at 0.980c and it lives 1.24x10-8 s when at rest relative to an observer. (a) How long does it live as you observe it? (b) What’s the particle’s kinetic energy in terms of m and c.

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