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Approximately how long would it take for a telephone signal to travel 2800 mi? (Telephone signals travel at about the speed of light? Answer in s

User DsCpp
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1 Answer

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19 votes

We know that the speed of light is approximately 186282 mi/s, so:


\begin{gathered} t\approx(2800mi\ast1s)/(186282mi)\Rightarrow t\approx(1400)/(93141)s \\ \\ \Rightarrow t\approx0.02s \end{gathered}

So, it would take approximately 0.02 s.

User Rajkumar Gour
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