Consider Three Galaxies, Alpha, Beta and Gamma $0.70 \mathrm { c }$

question 114

Multiple Choice

Consider three galaxies, Alpha, Beta and Gamma. An astronomer in Beta sees each of the other two galaxies moving away from her in opposite directions at $0.70 \mathrm { c }$ . At what speed would an observer in Alpha see the galaxy Beta moving?

• A) \(0.70 c\)
• B) \(0.82 c\)
• C) \(0.94 c\)
• D) \(0.35 c\)
• E) \(0.57 c\)

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Definitions:

Weight Discrimination

The unfair treatment of individuals based solely on their weight or body size, often manifesting in social, professional, and health care contexts.

Festinger And Carlsmith

Researchers known for their 1959 cognitive dissonance experiment, which investigated the effects of forced compliance behavior on changing attitudes.

Cognitive Dissonance

A state of psychological conflict arising from holding conflicting beliefs or values, leading to feelings of discomfort and the motivation to achieve consonance.

Cognitive Dissonance Theory

A psychological theory that suggests that individuals experience discomfort (dissonance) arising from inconsistent attitudes, beliefs, or behaviors and are motivated to reduce this discomfort by changing their attitudes, beliefs, or actions.