A Beam of Light Is Moving in the Same Direction

question 42

Multiple Choice

A beam of light is moving in the same direction as an object is traveling. If the object is moving at speed 0.70 c, how fast is the light moving as it passes the object?

• A)c
• B)1.35 c
• C)1.40 c
• D)0.3 c
• E)1.70 c

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Definitions:

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