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Help!! I would greatly appreciate help with this question. Consider a pulse of laser light aimed at the Moon that bounces back to Earth. The distance between Earth and the Moon is 3.84 * 108 m. Show that the round-trip time for the light is 2.56s.

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d = V*T
d = 2 * 3.84*10^8 m.
V = 3*10^8 m/s. = Speed of light.
Solve for T.

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