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v. t. e. In geometry, a line segment is a part of a straight line that is bounded by two distinct end points, and contains every point on the line that is between its endpoints. It is a special case of an arc, with zero curvature. The length of a line segment is given by the Euclidean distance between its endpoints.
Coulomb's inverse-square law, or simply Coulomb's law, is an experimental law [1] of physics that calculates the amount of force between two electrically charged particles at rest. This electric force is conventionally called the electrostatic force or Coulomb force. [2] Although the law was known earlier, it was first published in 1785 by ...
where r 1 is the separation between the two point charges. Energy stored in a system of three point charges [ edit ] The electrostatic potential energy of a system of three charges should not be confused with the electrostatic potential energy of Q 1 due to two charges Q 2 and Q 3 , because the latter doesn't include the electrostatic potential ...
where r is the distance from the large body M 1, R is the distance between the two main objects, and sgn(x) is the sign function of x. The terms in this function represent respectively: force from M 1; force from M 2; and centripetal force. The points L 3, L 1, L 2 occur where the acceleration is zero — see chart at right. Positive ...
The Euclidean distance between two points and is the length ‖ ‖ of the straight line between the two points. In many situations, the Euclidean distance is appropriate for capturing the actual distances in a given space.
Chord (geometry) A chord (from the Latin chorda, meaning "bowstring") of a circle is a straight line segment whose endpoints both lie on a circular arc. If a chord were to be extended infinitely on both directions into a line, the object is a secant line. The perpendicular line passing through the chord's midpoint is called sagitta (Latin for ...
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