A Pion Lives 26 Ns in Its Rest Frame,but an Observer

question 1

Multiple Choice

A pion lives 26 ns in its rest frame,but an observer in a laboratory in which the particle moves at a speed of 2.7 $\times$ 10⁸ m/s says the particle lived

• A)11 ns
• B)15 ns
• C)43 ns
• D)60 ns
• E)79 ns

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Enema

A procedure involving the introduction of liquid into the rectum and colon to induce bowel movement or for diagnostic purposes.

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