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    steciasmiley's Avatar
    steciasmiley Posts: 1, Reputation: 1
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    #1

    Oct 10, 2014, 02:30 AM
    Elementary mechanics
    What is the gravitational field strength at a height h above the surface of the Earth ? R is the radius of the earth.
    ebaines's Avatar
    ebaines Posts: 12,131, Reputation: 1307
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    #2

    Oct 11, 2014, 06:28 AM
    Newtron's Law of Graviy is a good place to start - do you know that formula? The force acting on a mass by the Earth is equal to the gravitational field times that mass.
    ma0641's Avatar
    ma0641 Posts: 15,675, Reputation: 1012
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    #3

    Oct 12, 2014, 05:32 PM
    You know what gravity is at the face of the earth. You can find the mass with Radius R. As h increases, what happens and why?
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