Question

 When NASA was communicating with astronauts on the Moon the time from sending to receiving was 1.28 s What is the distance to the Moon based on this?

Answer The radio signals travel at the speed of light, approximately 300,000 km/sec (186,000 mi/sec). The distance would be 1.28 x 300,000 or about 384,000 kilometers.*The actual time is an estimate, and ... Read More »
http://wiki.answers.com/Q/When_NASA_was_communicating_with_astronauts_on_the_Moon_the_t...

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