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CH-1 - Dr Sabah AL-Naimi Qatar University Physics Program...

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Dr. Sabah AL-Naimi Qatar University Physics Program FALL 2009 PHYS191 1 A coordinate system used to specify locations in space consists of: A fixed reference point O , called the origin. A set of specified axes with appropriate scales and labels on the axes. Instructions that tell us how to label a point in space relative to the origin and axes. 1.1 Coordinate Systems A common coordinate system is called the Cartesian Coordinate system, Sometimes called the Rectangular Coordinate system, This system labeled with the coordinate (X,Y). The Cartesian Coordinate can be expressed through equations relating the coordinates (X,Y) to the Plane polar coordinates system (r, ). As follows: 2 2 y x r
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