Estimate the Speed of a Galaxy Away from Us If

question 30

Multiple Choice

Estimate the speed of a galaxy away from us if it is 10 billion light-years from us and if the Hubble constant is 22 km/s per million light-years. (c = 3.00 × 10⁸ m/s, 1 ly = 9.461 × 10¹⁵ m, 1 y = 3.156 × 10⁷ s)

• A) 0.1c
• B) 0.3c
• C) 0.5c
• D) 0.7c
• E) 0.9c

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Definitions:

Maslow's Needs

A hierarchy of human needs proposed by Abraham Maslow, ranging from basic physiological needs to self-actualization.

Holistic-Dynamic Theory

A theory that views human behavior as a result of dynamic interactions between conscious and unconscious factors within the totality of the individual's environment.

Maslow's Needs

A hierarchy of human needs proposed by Abraham Maslow, suggesting people are motivated to fulfill basic needs before moving on to higher needs culminating in self-actualization.

Rogers's Needs

Refers to Carl Rogers's theory on human needs, emphasizing the importance of an individual's need for unconditional positive regard and an environment that fosters self-growth.