Ming Measures a Recession Velocity of 2000 Km/sec for a Galaxy

question 8

Multiple Choice

Ming measures a recession velocity of 2000 km/sec for a galaxy. About how far away is that galaxy if the Hubble constant is 20 km/sec/million light years? (Hint: be sure to check the units in your calculation.)

• A)40 thousand light years
• B)40 billion light years
• C)100 million light years
• D)100 light years

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Definitions:

Abraham Lincoln

The 16th President of the United States, who led the country through the Civil War and abolished slavery with the Emancipation Proclamation.

Antislavery Measures

Laws, actions, or movements aimed at ending the practice of slavery and the slave trade.

Confiscation Acts

A series of laws passed during the American Civil War allowing the confiscation of property, including enslaved people, used to support the Confederate rebellion.

Union Army

The land force that fought for the Union during the American Civil War.