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... describes the life cycle of a star
Weegy: NEBULA A nebula is a cloud of gas (hydrogen) and dust in space. Nebulae are the birthplaces of stars. There are different types of nebula. An Emission Nebula e.g. [ such as Orion nebula, glows brightly because the gas in it is energised by the stars that have already formed within it. In a Reflection Nebula, starlight reflects on the grains of dust in a nebula. The nebula surrounding the Pleiades Cluster is typical of a reflection ... (More)
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Asked 7/30/2012 12:26:12 PM
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astronomers think planets formed from interstellar dust and gases that clumped together in a process call...
Weegy: accretion. [ The various planets are thought to have formed from the solar nebula, the disc-shaped cloud of gas and dust left over from the Sun's formation.[27] The currently accepted method by which the planets formed is known as "accretion", in which the planets began as dust grains in orbit around the central protostar. ] User: is that called a. stellar evolution b. nebular aggregation c. planetary accreation d. nuclear fusion ... (More)
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Asked 7/30/2012 12:20:25 PM
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acceleration of an object depends on its mass and applied force. which law is it? is it keplers seecond law: law of equal areas, or newtons second law of motion
Weegy: Newton's second law states that the acceleration of an object is directly proportional to the net force acting on it, and inversely proportional to its mass. (More)
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Asked 7/30/2012 12:50:46 PM
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is it newtons third law of motion
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Updated 7/30/2012 1:18:59 PM
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Sir Isaac Newton first presented his three laws of motion in the "Principia Mathematica Philosophiae Naturalis" in 1686. His third law states that for every action (force) in nature there is an equal and opposite reaction. In other words, if object A exerts a force on object B, then object B also exerts an equal and opposite force on object A. Notice that the forces are exerted on different objects.

Added 7/30/2012 1:18:59 PM
which law is the following and is it newtons law or keplers law? the orbit of planets is not circular but ellipitical
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Updated 7/30/2012 1:31:14 PM
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The path of the planets about the sun is elliptical in shape, with the center of the sun being located at one focus is Keplers law called "The Law of Ellipses".
Added 7/30/2012 1:31:14 PM
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