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    Calculating Altitude

    I've been sitting here for 15 minutes trying to plonk in numbers and they're making no sense to me. Help. Please.
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    Calculating G

    Determine the value of the gravitational constant G given the following information: acceleration due to gravity = 9.81 earth's radius = 6.37 x 10^6 m earth's mass = 5.98 x 10^24 kg I keep getting 1.045 x 10^-17 (which I know is wrong) Can someone please do the question, with working out...
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    The Hottest Victoria's Secret Angel

    Inspired by the Most Beautiful Women thread - only with the Angels. Heidi Klum: Adriana Lima: Alessandra Ambrosio: Karolina Kurkova: Selita Ebanks: Miranda Kerr: Marisa Miller: Doutzen Kroes:
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