Recent Observations Indicate That the Universe Is Expanding Faster Today

question 27

Multiple Choice

Recent observations indicate that the universe is expanding faster today than it was a few billion years ago (that, in other words, the expansion of the universe is accelerating.) What kind of observations have led astronomers to this surprising conclusion?

• A) the measurements of cepheid variables in the galaxies of the Local Group
• B) the measurement of galaxy distances using Type Ia supernovae
• C) the discovery of large amounts of dark matter in the halo of the Milky Way
• D) the measurements of the amount of deuterium in the universe
• E) the fact that galaxies today are getting a lot more speeding tickets than they used to
• Section 29.3: The Beginning of the Universe

Understand the effects of elasticities of demand and supply on tax burden distribution.

Recognize the legislative aspect of tax imposition and its limitations in dictating the true tax burden.

Understand payroll taxes and their impact on workers and firms.

Analyze the effect of taxes on supply and demand in specific markets such as rental and luxury goods markets.

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Definitions:

Quantity Supplied

The quantity of a product or service that suppliers are ready to offer for sale at a certain price during a defined time frame.

Quantity Demanded

Quantity demanded is the total amount of a good or service that consumers are willing and able to purchase at a specific price level, at a given time.

Equilibrium

A state in which market supply and demand balance each other, resulting in stable prices and quantities.

Usury Laws

Regulations that set the maximum interest rate that can be charged on loans, intended to protect consumers from excessively high rates.