At Rest,pions Have a Proper Lifetime of 26 Ns

question 44

Multiple Choice

At rest,pions have a proper lifetime of 26 ns.What is the speed of a beam of pions if their observed lifetime were measured to be 64 ns ? (This is a real experiment that has been performed and found to be consistent with Special Relativity.)

• A)0.96c
• B)0.84c
• C)0.70c
• D)0.41c
• E)0.91c

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Definitions:

Evolutionary Psychology

An approach within social and natural sciences that analyzes psychological structures through the lens of contemporary evolutionary theory.

Sigmund Freud

Sigmund Freud was an Austrian neurologist and the founder of psychoanalysis, a method for treating psychopathology through dialogue between a patient and a psychoanalyst.

William James

A pioneering American psychologist and philosopher known for his contributions to pragmatism and functional psychology.

Empiricism

A philosophical theory that knowledge comes primarily from sensory experience, emphasizing the role of observation and experimentation in the formation of ideas.