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Bloom
Bloom asked in Science & MathematicsPhysics · 7 months ago

Science related question help?

When you look at Neptune in a telescope, you are actually looking into the past, as the light has to travel from Neptune to your eyes. If the speed of light is ~300,000 km/s, how far back into the past are you looking (or put another way, how long does it take light to travel from Neptune to your eyes on Earth)?

Choose one:

 ~14,501 hr

 ~4 hr

 ~242 hr

 ~1,233 hr

1 Answer

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  • alex
    Lv 7
    7 months ago

    Hint:

    distanced=4.3263 billion kmtime = distance / speed

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