Find time it took for his voice to reach earth via radiowave

Reference no: EM13262736

Neil A. Armstrong was the first person to walk on the moon. The distance between the earth and the moon is 3.85 ? 108 m. Find the time it took for his voice to reach earth via radio waves.
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Someday a person will walk on Mars, which is 5.6 ? 1010 m from earth at the point of closest approach. Determine the minimum time that will be required for that person's voice to reach earth.
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Reference no: EM13262736

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