Key Equations

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Key Equations

Newton’s second law of motion	$F = m a = m g$
Newton’s universal law of gravitation	$F = G \frac{m M}{r^{2}}$
acceleration due to gravity	$g = G \frac{M}{r^{2}}$
constant for satellites orbiting the same massive object	$\frac{r^{3}}{T^{2}} = \frac{G M}{4 π^{2}}$

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