Astronaut Rachel Leaves Earth in a Spaceship at a Speed $0.960 c$

question 46

Multiple Choice

Astronaut Rachel leaves Earth in a spaceship at a speed of $0.960 c$ relative to an observer on Earth. Rachel's destination is a star system $14.4$ light-years away (one light-year is the distance light travels in one year) . According to Rachel, how long does the trip take?

• A) 11 years
• B) 23 years
• C) \(4.2\) years
• D) 15 years
• E) 14 years

---

Definitions:

Responding

The act of reacting to a stimulus or environment in a way that is observable.

Parietal Cortex

A region of the brain located in the parietal lobe, involved in processing sensory information and spatial orientation.

Desirability

The quality of being wanted or sought after due to appealing attributes or qualities.

Matching Law

A principle that states the proportion of responses directed towards an option matches the proportion of reinforcements obtained from that option.