A Muon Has a Mean Lifetime of Only 2

question 34

Multiple Choice

A muon has a mean lifetime of only 2.200 µs in its own rest frame.If it moves with a speed of v = 0.9994 c in a certain reference frame,what is its mean lifetime in that frame?

• A)0.042 µs
• B)2.2 µs
• C)9.99 µs
• D)63.5 µs
• E)4200 µs

---

Definitions:

Proximate Cause

A legal term referring to an event sufficiently related to an injury that the law considers the event to be the cause of that injury.

Breached Duty

The failure to fulfill a legal or ethical obligation, often leading to liability.

Natural Consequences

Outcomes that happen as a result of behavior that are not planned or controlled by anyone.

Negligence Claim

A legal action taken when a person suffers harm due to another's failure to take reasonable care to prevent such harm.