You need to know the laws<span> of motion and gravity </span>discovered<span> by English physicist Isaac </span>Newton<span>, and the </span>laws<span> of orbital motion</span>discovered<span> by German astronomer Johannes Kepler. ... </span>Newton's law<span> of universal gravitation states that gravitational force decreases with distance and mass.</span>
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Some benefits of the Athenian Democracy is making deceptions based on the options of many rather than a few, giving responsibility to more citizens and making record available to the public examination<span />
