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    Working with the center of mass of the Earth-Moon system

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    (a) How far is the center of mass of the Earth-Moon system from the center of the Earth? (Appendix C gives the masses of the Earth and the Moon and the distance between the two.)
    (b) Express the answer to (a) as a fraction of the Earth's radius.(Rcm/Rearth)

    Given:
    Distance from moon to earth: 3.82E8m
    Mass of Earth: 5.98E24
    Mass of Moon: 7.36E22

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    https://brainmass.com/physics/work/working-center-mass-earth-moon-system-15779

    Solution Preview

    Mass of Earth is 5.98 x 10^24 kg
    <br>Mass of Moon is 7.36 x 10^22 kg
    <br>Orbital radius of the Moon is 3.84 x 10^5 km
    <br>
    <br>For the center of mass we have the equation, Ro ...

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