If We Could Watch Spiral Arms from a Telescope Situated

question 69

Multiple Choice

If we could watch spiral arms from a telescope situated above the Milky Way over 500 million years, what would we see happen?

• A)The spiral arms will eventually dissipate and fade away, since they are a temporary phenomenon that should only last for a million years or so.
• B)The spiral arms will eventually unwind, as centripetal forces send the stars flying outwards into intergalactic space.
• C)The spiral arms will seem to "wind up," to wrap more and more tightly around the center of the Galaxy.
• D)Stars will move through the spiral arms, bunching up closer as they pass through. Young hot stars will form and die within the arms before having a chance to move out.

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Definitions:

Equity Securities

Financial instruments that represent ownership interest in a company, such as common stock, and typically provide voting rights and potential dividends.

Creditor Relationship

The financial relationship that exists between a borrower or debtor and a lender, where the lender provides a loan or credit to the borrower.

Cash Equivalents

Cash equivalents are short-term, highly liquid investments that are readily convertible to known amounts of cash and which are subject to an insignificant risk of changes in value.

Mature

In finance, it refers to the stage at which an investment or financial instrument reaches its final due date and the principal is returned to the investor.