What Is the Best Alternative Explanation for the Dark Matter

question 79

Multiple Choice

What is the best alternative explanation for the dark matter in the Milky Way based on the observed orbital motions of stars and gas?

• A)We are not observing all the visible matter in the Milky Way.
• B)We are not measuring the distances to gas clouds and stars properly.
• C)We are not measuring the orbital velocities of gas clouds and stars properly.
• D)We are not attributing enough mass to the visible matter in the Milky Way.
• E)There is something wrong with our understanding of how gravity works.

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Definitions:

Opportunity Cost

The value of the best alternative foregone as a result of choosing a different option.

Idle Capacity

Unused or underutilized resources and capabilities within an operation that could be employed to generate output.

Tactical Decisions

Short-term choices made by an organization to address immediate challenges or opportunities, often within the framework of broader strategic plans.

Strategic Decisions

High-level choices that are made by top management to steer an organization towards its long-term goals and objectives.