2007-03-26 20:33:14 · 5 answers · asked by Anonymous in Science & Mathematics ➔ Astronomy & Space
check this answer to the same question
http://www.madsci.org/posts/archives/oct99/940428154.As.r.html
2007-03-26 20:45:22 · answer #1 · answered by mr_bigballs_2000 2 · 0⤊ 0⤋
The center of mass of a system is the point where the mass of the system may be considered to be concentrated. This means you can replace the whole system with just a point mass and apply external forces to it, something you always do when you study physics problems, for example.
For the Earth-Moon system that's still inside the Earth's surface. I guess that's the reason we usually say 'the Moon rotates around the Earth' instead of the correct 'the Moon rotates around the Earth-Moon's center of mass'.
2007-03-27 04:59:58 · answer #2 · answered by stardom65 3 · 0⤊ 0⤋
This Site Might Help You.
RE:
What and where is the center of mass of Earth-moon system?
2015-08-19 02:33:36 · answer #3 · answered by Melodie 1 · 0⤊ 0⤋
Below the surface of the earth at the ratio of the mass of the moon to the mass of the earth on the distance between centers.
1 earth mass = 5.9742 × 1024 kilograms
MOON — Mass: 0.073 1024kg
The moon has one-quarter the diameter and 0.012 the mass of the Earth
average Earth-Moon distance is about 385000 km plus earth radius plus moon radius
equatorial radius of the Earth is 6378.137 km
Moon Equatorial radius (km), 1737.4.
385000+6378+1737 = 393 115
times 0.012 = 4717.38
or about 1660 below the surface
2007-03-26 20:46:04 · answer #4 · answered by Mike1942f 7 · 3⤊ 0⤋
Mass of moon = .0123 x mass of earth Distance to moon = 384,000 km Center of mass of earth-moon system = .0123 x 384,000km / 2 = 2,360 km from center of earth. (For comparison, the radius of the earth is 6,370 km.)
2016-03-17 01:54:18 · answer #5 · answered by ? 3 · 0⤊ 0⤋
well it should be nearer to earth but exactly where cannot be determined as both of them r in continuous motion.
2007-03-26 20:41:24 · answer #6 · answered by ashwin parihar 2 · 0⤊ 2⤋