Answer:
1.283 seconds
Explanation:
Given,
Distance between the earth and the moon = 3.85 × 10^8 meters (m)
Speed of the radio waves in space = 3 × 10^8 meters/second (m/sec)
As we know that,
Speed = [tex]\frac{Distance}{Time}[/tex]
Time = [tex]\frac{Distance}{Speed}[/tex]
Time = [tex]\frac{3.85 \times\ 10^8}{3 \times\ 10^8}[/tex]
Therefore, Time = 1.283 seconds.
Thus, the time it took for the voice of Neil Arm Strong to reach the earth via radio waves is 1.283 seconds.