If the Distance of a Galaxy at a Redshift Z

question 4

Multiple Choice

If the distance of a galaxy at a redshift z = 0.5 is 1,800 Mpc,how many years back into the past are we looking when we observe this galaxy?

• A) 500 million years
• B) 2 billion years
• C) 6 billion years
• D) 9 billion years

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Definitions:

Aggregate Demand

The total demand for all goods and services in an economy at a given overall price level and time.

Tax Cuts

Reductions in the amount of taxes that individuals or corporations must pay to the government, often aimed at stimulating economic growth or achieving policy goals.

Legislation

Laws that have been passed by a governing body or legislature.

Aggregate Demand

The all-inclusive demand for goods and services within an economy, set at a definite price level and over a specific duration.