Question

Hi yall, i really need help with this math question. it makes no sense to me and it might too somebody else. Pluto is located at a distance of 5.98 x 10^14 centimeters from Earth.
At the speed of light (2.99 x 10^10 cm/sec) how long does it take a light signal to travel to Pluto and return? Enter your answer in seconds in standard notation.

Answer 1

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