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3psilonBest ResponseYou've already chosen the best response.2
\[\frac{ 3x10^{8} meters}{ 1 \sec } * \frac{ 1.0x10^9 seconds }{ 1 nanosecond }\] This will give you meters per 1 nanosec
 one year ago

maparicioBest ResponseYou've already chosen the best response.0
Thank you, can you help me with this part: By bouncing laser beams off a reflector placed on our moon by the Apollo astronauts, astronomers can make very accurate measurements of the earthmoon distance ( ).How long after it is sent does it take such a laser beam (which is just a light beam) to return to earth?
 one year ago

3psilonBest ResponseYou've already chosen the best response.2
So do they give you the distance from earth to moon?
 one year ago

maparicioBest ResponseYou've already chosen the best response.0
nevermind thanks but I figured it out
 one year ago
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