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the maximum distance between the earth and mars is 378000000 km and the minimum distance is 78000000 km. When the distance is 378000000km, the amount of time for a radio signal to travel from mars to earth is how many seconds

Guest Mar 27, 2017
 #1
avatar+87604 
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Radio waves travel at about 300,000,000 km /s

 

So

 

378,000,000km / 300,000,000 km /s  ≈  1.26 s

 

 

 

cool cool cool

CPhill  Mar 27, 2017
 #2
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CPhill: A minor mistake. The speed of light is about 300,000 km/sec.

378,000,000 / 300,000 =1,260 seconds, or 21 minutes.

Guest Mar 27, 2017
 #3
avatar+87604 
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Thanks, guest....sorry for the boo-boo....!!!!

 

 

cool cool cool

CPhill  Mar 27, 2017

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