Astr 221 Aug 29 2003: Orbits, Energy and Escape Velocity  

Some useful formulae

Energy of Orbits

Question:Work and Planets

Integrating and Total Energy

Asteroids in Orbit

Why can we ignore the Sun's k.e. here?

New formula for k.e.

Circular velocity

Simpler formula for total energy

Diagram

Kinetic and potential energy trade off

Escape velocity

Synchronous satellites

How far away are synchronous satellite orbits?