1. Hit preset and choose "Earth and Sun". Place a Jupiter mass planet at postion Y = 0 and X = 5 AU (this is about the real position of Jupiter). On the line joining the Earth and this Jupiter, place 5 more Jupiter sized masses and 5 Earth sized masses. Hit play and watch the evolution. Use left-click only so that your planets will all start on circular orbits. Describe the state of the planetary system after 100 years. Repeat the exercise three times. What do you find in common with each evolved planetary system?
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