Controversies about the value of the third cosmic velocity
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The purpose of writing this article was to derivate the formula for the third cosmic velocity using only the laws of conservation in the heliocentric reference system. It turns out that it can be done by using elementary mathematics, thanks to which the reasoning and calculations are affordable for one interested in this subject. By the way, we wanted to discuss the errors that appear even in well-known textbooks and professional articles, whose commitment leads to incorrect results. The magnitudes of the third cosmic velocity obtained by us are: v3average = 16.68 km/s, v3perihelion = 16.57 km/s and v3aphelion = 16.79 km/s
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