Where does the valuefor g come from?

• Newton’s law of gravity: The (attractive) force F between two masses m and M isG = 6.672 E-11 Nm2/kg2 (universal gravit. const.)RE = 6.38 E6 m (radius of Earth)ME = 5.98 E24 kg (mass of Earth)

• Examples: HW 3, # 13, 14, 15

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