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    radio signal from Luna to Terra

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    The satellite Luna is located 3.78 x 10^5 km from the planet Terra. How much time in seconds, does it take for a radio signal to travel from Luna to Terra?

    a. 794 s
    b. 1.26 s
    c. 1.26 x 10 to the power of -3 s
    d. 0.794 s
    e 1.13 x 10 to the power of 17 s

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    Solution Preview

    The radio signal travels with the speed of light c = 300,000 km per ...

    Solution Summary

    It shows how to find the time it takes for a radio signal to travel from Luna to Terra.