Multiple Choice
The moon's distance from Earth is measured very accurately by bouncing a laser beam off of a small mirror left on the surface of the moon.If a laser is fired at the moon and the signal returns in 2.6 seconds,what is the distance to the moon? (Hint: speed of light c = 300,000 km/s)
A) 390,000 km
B) 390,000 m
C) 780,000 km
D) 780,000 m
Correct Answer:
Verified
Correct Answer:
Verified
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