February 22, 2017

Homework Help: physics

Posted by Meisha on Tuesday, March 29, 2011 at 5:25pm.

The orbit of Halley's Comet around the Sun is a long thin ellipse. At its aphelion (point farthest from the Sun), the comet is 5.1 1012 m from the Sun and moves with a speed of 12.0 km/s. What is the comet's speed at its perihelion (closest approach to the Sun) where its distance from the Sun is 8.2 1010 m?

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