If you use a marble of radius 11 mm for mercury, how far from the sun must you place your outermost planet? express your answer with the appropriate units.
Well so we know that 11mm is 2440km so 1mm is 2440/11 which is 221.8. Ans we know that Neptune is the farthest and the distance is 4.498 billion km the we would divide that by 221.8 to get answer. Ans=2.36km
