A neil a armstrong was the first person to walk on the moon

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Reference no: EM13621819

(a) 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 the earth via radio waves.

(b) Someday a person will walk on Mars, which is 5.6 × 1010 m from the earth at the point of closest approach. Determine the minimum time that will be required for a message from Mars to reach the earth via radio waves.

Reference no: EM13621819

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