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Quadratic Equations
This article is about single-variable quadratic equations and their solutions. For more general information about the single-variable case, see Quadratic function. For the case of more than one variable,...
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Atomic Structure
Atoms are the foundation of chemistry. They are the basis for everything in the Universe. As you know, matter is composed of atoms. Solids are made of densely packed atoms while...
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Straight lines
The notion of line or straight line was introduced by ancient mathematicians to represent straight objects (i.e., having no curvature) with negligible width and depth. Lines are an idealization of such objects. Until...
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Electrostatics
Electrostatics is a branch of physics that deals with the phenomena and properties of stationary or slow-moving electric charges with no acceleration. Since classical physics, it has been known that some materials such as amber attract...
