The Expansion of the Universe Seems to Be Accelerating

question 21

Multiple Choice

The expansion of the universe seems to be accelerating. The evidence for this is based on observations of

• A) the cosmic background radiation.
• B) gas clouds orbiting the centers of galaxies.
• C) the slowing down in the pulsation rate of distant neutron stars.
• D) the redshift in the light from the explosions of distant supernovas.
• E) the manner in which the stars are distributed in our own galaxy.

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Definitions:

Return on Total Assets

A financial ratio that measures the efficiency of a company's use of its assets in generating profit, calculated as net income divided by total assets.

Price-earnings Ratio

A metric used in finance to compare a firm's present stock price with its earnings for each share.

Dividend Payout Ratio

A financial ratio that shows the percentage of a company's earnings paid out to shareholders as dividends.

Gross Margin Percentage

A profitability metric that measures how much of each dollar of revenue is left after deducting the costs of goods sold.