PAU Physics (Cantabria) Practice Questions - Cantabria PAU Physics 2026 (Pruebas De Acceso A La Universidad, Universidad De Cantabria) Exam

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A satellite orbits Earth at an altitude equal to Earth's radius $R_E = 6.37 \times 10^6\text{ m}$. If the gravitational field strength at Earth's surface is $g_0 = 9.80\text{ m/s}^2$, what is the gravitational field strength $g$ at the satellite's orbital altitude?

2.45 m/s² 4.90 m/s² 1.23 m/s² 9.80 m/s²

Correct Answer:

2.45 m/s²

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