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  • Earth-Sun Distance & Gravity: A Physics Explanation
    If the distance between the Earth and the Sun were doubled, the gravitational force between them would decrease by a factor of four.

    Here's why:

    * Newton's Law of Universal Gravitation: This law states that the gravitational force between two objects is directly proportional to the product of their masses and inversely proportional to the square of the distance between their centers.

    * The Formula: F = G * (m1 * m2) / r²

    * F is the force of gravity

    * G is the gravitational constant

    * m1 and m2 are the masses of the two objects

    * r is the distance between their centers

    * Doubling the Distance: If you double the distance (r), the denominator of the equation becomes four times larger (r²). This means the force of gravity (F) is reduced to one-fourth of its original value.

    In simpler terms: Gravity weakens with distance. The farther away two objects are, the weaker the gravitational pull between them. Doubling the distance between Earth and the Sun significantly reduces the Sun's gravitational influence on Earth.

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