Take Earth’s radius and surface value

PHYSICS · Single correct · A Level · Physics · Fields and their consequences · Fields and their consequences

Problem

Take Earth’s radius R=6400 kmR = 6400\,\text{km} and surface value g=9.8 m s−2g = 9.8\,\text{m\,s}^{-2}. Calculate the value of gg at an altitude of 500 km500\,\text{km}. (a) 9.09 m s−29.09\,\text{m\,s}^{-2} (b) 7.81 m s−27.81\,\text{m\,s}^{-2} (c) 8.43 m s−28.43\,\text{m\,s}^{-2} (d) 9.80 m s−29.80\,\text{m\,s}^{-2}

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