An Observer on the Earth Sees the U

An observer on the Earth sees the U.S.S.Enterprise approaching from one direction at 0.60 c and a Klingon Battle Cruiser approaching from the opposite direction.According to Mr.Spock,who is aboard the Enterprise,the Klingon Battle Cruiser is approaching the Enterprise,that 0.80 c.What is the speed of the Klingon Battle Cruiser as observed from Earth?

A) 0.20 c
B) 0.45 c
C) 0.32 c
D) 0.38 c
E) None are correct.

Correct Answer:

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