If the Intrinsically Brightest Stars in Earth's Sky Have Absolute

question 181

Multiple Choice

If the intrinsically brightest stars in Earth's sky have absolute magnitudes of -10, how bright (in terms of total energy output per second) are these stars compared with the Sun, whose absolute magnitude is +4.8?

• A) about 14.8 times brighter
• B) about 800,000 times brighter
• C) about 8000 times brighter
• D) about 10¹⁵, or 1,000,000,000,000,000, times brighter

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Definitions:

Sympathetic Nervous System

The sympathetic nervous system is part of the autonomic nervous system that prepares the body for physical activity and is often associated with the fight-or-flight response.

Cannon

Cannon likely refers to Walter B. Cannon, a physiologist who coined the term "fight or flight response" and contributed significantly to the understanding of homeostasis.

Parasympathetic Nervous

The part of the autonomic nervous system responsible for conserving energy and relaxing the body, counterbalancing the sympathetic nervous system.

Cognitive-Physiological Theory

A concept that links cognitive processes with bodily functions, explaining how thoughts and emotions influence physiological responses.