An Astronomer Observes Two Stars of the Same Surface Temperature

question 140

Multiple Choice

An astronomer observes two stars of the same surface temperature, but one has twice the diameter of the other. How many times larger is the energy production rate per unit surface area from the larger star compared with that from the smaller star?

• A) 2
• B) 4
• C) 16
• D) They are the same.

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Definitions:

Peer Evaluations

Assessments made by individuals of the same status, such as coworkers or classmates, regarding each other's performance, skills, or behaviors.

Self-esteem

An individual's overall subjective emotional evaluation of their own worth.

Self-control

The ability to regulate one's emotions, thoughts, and behavior in the face of temptations and impulses.

Empathy

The capacity to understand another person’s emotions and concerns.