Homework Help: Astronomy

Posted by Anonymous on Tuesday, September 14, 2010 at 11:26pm.

Compared to the Sun's gravitational force on the Earth, what is the Sun's gravitational force on Jupiter.

Jupiter's average distance from the Sun=5AU
Earth's average distance from the Sun=1AU

Jupiter's mass is 300 times larger than Earth.

I think the answer is 25 times weaker, but I am not positive.

Astronomy - drwls, Tuesday, September 14, 2010 at 11:32pm
(Jupiter gravity)/(Earth gravity) = 300/5^2 = 12 times stronger.

The greater mass of Jupiter outweighs the its distance from the sun

How did you come up wth 25 times less?
Astronomy - bella, Monday, May 2, 2011 at 11:13am
Of th following stars, which is brightest?nova,sun,white dwarf,red giant.

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