A Set of Twins,Andrea and Courtney,are Initially 10 Years Old

question 46

Multiple Choice

A set of twins,Andrea and Courtney,are initially 10 years old.While Courtney remains on Earth,Andrea rides on a spaceship which travels away from Earth at a speed of 0.60c for five years (as measured by Courtney) ,then immediately turns around and comes back at 0.60c.When Andrea returns,Courtney is 20 years old.How old is Andrea upon her return?

• A) 10 y
• B) 12 y
• C) 15 y
• D) 18 y
• E) 20 y

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Definitions:

Elaboration Likelihood Model

A theory that explains how people are persuaded, describing two paths of persuasion: the central route and the peripheral route.

Central Route

A methodology in persuasion that involves deeply processing the content of the message, leading to a lasting attitude change.

Enduring Attitude Change

A long-term alteration in an individual's attitude or belief system, often resulting from persistent persuasion, significant life events, or extensive information processing.

Modern Ethical Guidelines

Contemporary principles that govern the conduct of individuals and organizations, focusing on respecting autonomy, preventing harm, ensuring fairness, and maintaining confidentiality, especially within professional settings.