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Earth Science 11View my complete profile. Keplers 3 Laws Of Planetary Motion. Newtons 3 Laws of Motion. Thursday, June 02, 2005. Posted by C Walker @ 12:45 PM. Unlike Mercury, Gemini and Apollo the space shuttle is designed to be reused. Each shuttle can be launched into space, return home and be ready to go back up onto space again within a few months. Posted by C Walker @ 11:25 AM. Kepler's 3 Laws Of Planetary Motion. The ratio of the squares of the periods of any two planets is equal to the ratio of the cubes of thei...
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