Multiple Choice
An earth observer sees an alien ship pass overhead at 0.3c. The ion gun of the alien ship shoots ions straight ahead of the ship at a speed 0.4c relative to the ship. What is the speed of the ions relative to the earth observer?
A) 0.40c
B) 0.63c
C) 0.70c
D) 0.79c
E) 0.99c
Correct Answer:
Verified
Correct Answer:
Verified
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