A Certain Unstable Particle Has a Mean Lifetime Of $1.52 \times 10 ^ { - 6 } \mathrm {~s}$

question 74

Multiple Choice

A certain unstable particle has a mean lifetime of $1.52 \times 10 ^ { - 6 } \mathrm {~s}$ . This is the time interval between its creation in a nuclear process and its extinction into decay products, as measured in a frame of reference at rest with respect to the particle. An average such particle is observed by a scientist on Earth to travel $342 \mathrm {~m}$ in its lifetime. What is the speed of the particle relative to Earth? $( c = 3.00 \mathrm { x }$ $10 ^ { 8 } \mathrm {~m} / \mathrm { s }$ )

• A) \(0.821 c\)
• B) \(0.551 \mathrm { c }\)
• C) \(0.681 c\)
• D) \(0.600 c\)
• E) \(0.335 c\)

---

Definitions:

Amoral Behavior

When a person has no sense of right and wrong and no interest in the moral consequences of his or her actions.

Unethical Behavior

Actions that go against moral principles and professional standards, often resulting in unfair or dishonest practices.

Rules-Based

An approach or system that makes decisions or takes actions according to explicit rules or guidelines.

Artificial Intelligence

The simulation of human intelligence processes by machines, especially computer systems, including learning, reasoning, and self-correction.