An Elliptical Galaxy in Boötes (Shown at the Bottom of Figure

question 46

Multiple Choice

An elliptical galaxy in Boötes (shown at the bottom of Figure 17-32 in the text) is at a distance of 1.6 billion ly and has an apparent recession speed of 39,000 km/s. What upper limit does this imply to the age of the universe? (Be careful with units.)

• A) 0.47 billion years
• B) 12 million years
• C) 47 billion years
• D) 12 billion years

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Definitions:

Attempt Suicide

The act of intentionally trying to end one's own life.

Identical Twins

Twins that are genetically identical, resulting from the splitting of a single fertilized egg.

Adoptive Mom

A woman who has become a parent through the legal process of adoption, establishing a parent-child relationship with a child to whom she is not biologically related.

Biological Mom

A term referring to a woman who has genetically contributed to the creation and birth of a child.