Center of mass - Wikipedia, the free encyclopedia
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The center of mass of a system of particles is a specific point where, for many purposes, the system behaves as if its mass were concentrated there. The center of mass is a function only of the posi...
en.wikipedia.org/wiki/Center_of_mass
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Moon - Wikipedia, the free encyclopedia
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The Moon is Earth's only natural satellite and the fifth largest satellite in the Solar System. The average centre-to-centre distance from the Earth to the Moon is 384403 kilometer, about thirty tim...
en.wikipedia.org/wiki/Moon
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In this essay, we consider the relationship of the Earth-Moon barycenter, which represents the center of mass of the Earth-Moon system. The barycenter is actually the common axis of rotation of the Earth-Moon system.
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www.earthmatrix.com/moon/barycenter.html
www.earthmatrix.com/moon/barycenter.html
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The Moon does not just go around the Earth. In reality, the two objects orbit about a common gravitational midpoint, called a barycenter. The mass of each object and the distance between them dictates ... Like the orbiting spaceship, the center of the Earth is in free-fall around the barycenter of the Earth-Moon system.
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www.space.com/scienceastronomy/moon_mechanics_0303018.h...
www.space.com/scienceastronomy/moon_mechanics_0303018.html
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"If the Earth and Moon do survive, then the barycenter will eventually move outside the Earth as the Moon recedes," Laughlin told SPACE.com. "At that point the Moon would be promoted to planetary status." [What would we call it?]
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www.space.com/scienceastronomy/060817_moon_planet.html
www.space.com/scienceastronomy/060817_moon_planet.html
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Teaches how the Moon orbits the Earth, gravity, velocity, tides and barycenter ... Where's the Earth-Moon barycenter? ... The barycenter moves as the Moon revolves around the Earth. Opps. That's not true. The Earth and the Moon revolve around the Earth-Moon barycenter!
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www.synapses.co.uk/astro/moon1.html
www.synapses.co.uk/astro/moon1.html
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The barycenter, aka, "center of mass", aka, "center of gravity" of the Earth-Moon system is located within the Earth. Due to Earth's rotation and the orbiting of the Moon, the Earth-Moon barycenter is always on the move....
http://wiki.answers.com/Q/What_is_the_barycenter_of_the...
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Figure 7: The earth and moon revolving around the barycenter. Notice how the earth moves slightly. ... The sun acts on the earth and its moon as one entity with its center at the barycenter. Since the earth revolves around the barycenter, which in turn orbits the sun, the earth follows a wobbly path around the sun.
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library.thinkquest.org/29033/begin/earthsunmoon.htm
library.thinkquest.org/29033/begin/earthsunmoon.htm
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Jan 28, 2006 ... Watch carefully as the Earth (the small blue circle in the centre) wobbles around the Earth-Moon barycenter (the tiny red dot exactly at the ...
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calgary.rasc.ca/barycenter.htm
calgary.rasc.ca/barycenter.htm
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