Minimum Time Delay for Communicating with Astronaut on Moon: 2.5s

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SUMMARY

The minimum time delay for communication with an astronaut on the Moon, located 3.8 x 108 meters from Earth, is definitively calculated as 2.5 seconds. This calculation is based on the formula ( (3.8 x 108) / c ) x 2, where 'c' represents the speed of light. The formula accounts for the round trip distance of the signal traveling to the Moon and back to Earth. This established fact confirms the time delay in space communication.

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In communicating with an astronaut on the moon, 3.8x10^8 m from earth, what is the minimum time delay in getting a response to a question?


The answer in the book is given as 2.5 seconds.Have they simply used;

( (3.8x10^8) / c ) x 2
 
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Yes, i assume they have used ( (3.8x10^8) / c ) x 2 to get the distance from Earth to Moon and then back, then they have divided by speed of light.
 
Thank you
 

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