Recent content by refractor

I think I still haven't understood. I'd say it's \omega = \sqrt{\frac{\gamma M}{R^3}} and thus L = m\sqrt{\gamma M R} In my first post I wrote angular momentum is conserved, but why does it depend on M? And provided we are talking about this formula: e = \sqrt{1 +...

sorry, this relation is known but it doesn't solve the problem. Could anybody help?

Homework Statement Initially, a planet with mass m moves on a circular orbit (r = R) around a star with mass M. Now M is instantaneously decreased to M'. Find the eccentricity e of the elliptical orbit the planet now follows. Homework Equations specific angular momentum l = L/m...