According to the Tully-Fisher Relation, the Rotational Speed of a Spiral

question 88

Multiple Choice

According to the Tully-Fisher relation, the rotational speed of a spiral galaxy, as indicated bythe broadening of spectral lines, allows us to determine the galaxy's

• A)luminosity.
• B)color.
• C)redshift.
• D)mass.
• E)shape.

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Definitions:

Utilitarianism

A moral theory that advocates for actions that maximize happiness or well-being for the greatest number of people.

Ethical Theory

A branch of philosophy that involves systematizing, defending, and recommending concepts of right and wrong behavior, focusing on moral principles and values.

Altruism

The selfless concern for the well-being of others without expecting any reward.

Ethical Theory

A system of thought that explores the nature of morality and the moral choices individuals make.