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Two Spaceships Approach Earth from Opposite Directions

Question 49

Multiple Choice

Two spaceships approach Earth from opposite directions. One has a speed of 0.21c and the other a speed of 0.34c, both relative to Earth. What is the speed of one spaceship relative to the other?


A) 0.58c
B) 0.55c
C) 0.64c
D) 0.61c
E) 0.51c

Correct Answer:

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