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The International Space Station (ISS) orbits Earth at an altitude of $411\text{ km}$.

What is the magnitude of Earth's gravitational field at that location?

The mass of Earth is $5.972 \times 10^{24}\text{ kg}$, the mass of the ISS is $419{,}455\text{ kg}$ and Earth's diameter is $1.2742 \times 10^7\text{ m}$. Assume the ISS is a point mass compared to the Earth.

A

$9.81\text{ N/kg}$

B

$8.66\text{ N/kg}$

C

$2.45\text{ N/kg}$

D

$2.30\text{ N/kg}$

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