Question

The earth's orbit is oval in Shape explain how the magnitude of the gravitational force between the earth and the sun changes as the earth moves from position a to b

Answer 1

Answer:

The radius of Earth orbit when farther from Sun is (1+0.01671)/(1-0.01671) = 1.03399 times the radius when closer to the Sun.

This means that the magnitude of gravitational force varies (1.03399)^2 = 1.069.

Thus that magnitude varies 6.9 percent, assuming that A is perihelion and B is aphelion.

Answer 2

Answer:

Earth orbits the sun once every 365 days.The shape of its orbit is not quite a perfect Circle.It's more like an oval, which causes the Earth's distance from the sun to vary during the year. Earth is nearest to the sun, or at "Perihelion",in January when it's about 91 million miles away.

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