150 0.0000 2. Use the distance from the previous problem to calculate how long it takes for light to travel from the Sun to Eart

Question

150 0.0000
2. Use the distance from the previous problem to calculate how long it takes for light to travel from the
Sun to Earth.
300,000,000X 15000,000,

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Thông Đạt 1 year 2021-07-27T16:02:49+00:00 1 Answers 7 views 0

Answers ( )

    0
    2021-07-27T16:03:51+00:00

    Answer:

     t = 5 10² s

    Explanation:

    Light is an electromagnetic wave that travels at a constant speed of 3 10⁸ m/s in vacuum.

    The distance from the Sun to the Earth is 150 10⁶ km

    Let’s reduce the distance to the SI system

           x = 150 10⁶ km (10³ m / 1 km) = 150 10⁹ m

    Since the velocity is constant, we can use the uniform motion relations

           v = x / t

           t = x / v

    let’s calculate

           t = 150 10⁹ / 3 10⁸

           t = 5 10² s

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