From a wiki's vis-viva equation page, it is given that the specific angular momentum h is also equal to the following:(adsbygoogle = window.adsbygoogle || []).push({});

h = wr^2 = ab * n

How can ab * n be derived to be equal to the angular momentum using elliptical orbit energy/momentum/other equations without having to use calculus or equations involving eccentricity?

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# I Why is the specific angular momentum equal to this?

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