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N[1 / (sqrt(1 - (370 km/s)^2 / c^2) * (1 - (G * Earth mass) / (Earth radius * c^2))),10]
N[1 / (sqrt(1 - (370 km/s)^2 / c^2) * (1 - (G * Earth mass) / (Earth radius * c^2))),10]
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