How Fast Would You Have to Travel in Order to Reach

question 82

Multiple Choice

How fast would you have to travel in order to reach a star that is 50 light-years away from Earth when you are 40 years older than you were when you left Earth? One light-year is the distance light travels in one year.

• A) 0.58c
• B) 0.68c
• C) 0.78c
• D) 0.88c
• E) 0.96c

---

Definitions:

Leon Festinger

A psychologist known for his theory of cognitive dissonance, which explores how people strive for internal consistency between their beliefs and behaviors.

Group Cohesion

The strength and solidarity of the bonds among group members, contributing to the group's unity, commitment, and capacity to act as a single entity.

Task Cohesion

The degree to which group members work together towards a common goal and the level of commitment to achieving that goal.

Entitativity

The degree to which a group is perceived as being a coherent, unified entity.