A Star Is Moving Toward Earth at 90% the Speed

question 25

Multiple Choice

A star is moving toward Earth at 90% the speed of light.The star emits light,which moves away from the star at the speed of light.What do Earth-based astronomers measure for the speed of this light?

• A)c
• B)1.9c
• C)1.2c
• D)0.98c
• E)0.95c

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Definitions:

Depletion

The allocation of the cost of natural resources over the period they are consumed or sold.

Residual Value

The estimated value that an asset will realize upon its sale at the end of its useful life, after deducting the cost of disposal.

Service Life

The expected duration or period an asset is considered useful and productive for its intended purpose.