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The International Space Station ISS (the mass is approximately 990,000 pounds) orbits the earth at an altitude of approximately 250 miles above the surface of the earth. Assuming a circular orbit, what is the attractive force that the earth exerts to keep it in orbit? Give your answer in the form "a.bc x 10^(y)" N. What is the magnitude of the earth's gravitational field at the location of the ISS? Give your answer in the form "a.bc x 10^(y)" N/kg.

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