Based on Galactic Rotation Curves and Cluster Dynamics, We Think

question 73

Multiple Choice

Based on galactic rotation curves and cluster dynamics, we think dark matter:

• A)is a minor component of the entire mass of the universe.
• B)is best detected from the X-rays it produces in the intergalactic medium.
• C)will have no effect on the fate of the universe.
• D)comprises over 90% of the entire mass of the universe.
• E)will doom the universe to collapse, overcoming the redshifts we now observe.

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Definitions:

Straight-Line Method

A depreciation technique where an equal amount of depreciation expense is allocated for each year of the asset's useful life.