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A satellite circles a spherical planet of unknown mass in a circular orbit of radius 1.9×107m . The magnitude of the gravitational force exerted on the satellite by the planet is 140N .

What would be the magnitude of the gravitational force exerted on the satellite by the planet if the radius of the orbit were increased to 3.2×107m ?

  • physic -

    A satellite circles a spherical planet of unknown mass in a circular orbit of radius 1.9×107m . The magnitude of the gravitational force exerted on the satellite by the planet is 140N .
    Part A
    What would be the magnitude of the gravitational force exerted on the satellite by the planet if the radius of the orbit were increased to 3.2×107m ?

  • physic -

    F₁=G•m•M/R₁²
    F₂ =G•m•M/R₂²

    F₁/F₂=R₂²/R₁²
    F₂=F₁•R₁²/R₂²= …

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