2. Kepler determined that planets change their speed as they travel around the sun. This happens due to all of the following EXCEPT
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1 point
The sun's gravity pulls against the planet's inertia in some places
The sun's gravity pulls with the planet's inertia in some places
The sun's gravity makes the planets slow as they get closer
The planets' orbits are elliptical
1 answer
The sun's gravity pulls with the planet's inertia in some places
1 answer