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  2. Symbols of leadership - Wikipedia

    en.wikipedia.org/wiki/Symbols_of_leadership

    Some symbols follow accepted constitutional or diplomatic standards: flags, sashes, entrance Marches or a medallion or necklace. The use of the symbols mostly occurs for domestic purposes. Examples of such symbols include the American presidential march "Hail to the Chief", and the presidential sashes worn by the presidents of Latin America ...

  3. Causal loop diagram - Wikipedia

    en.wikipedia.org/wiki/Causal_loop_diagram

    A positive causal link can be said to lead to a change in the same direction, and an opposite link can be said to lead to change in the opposite direction, i.e. if the variable in which the link starts increases, the other variable decreases and vice versa. The words without arrows are loop labels.

  4. Free body diagram - Wikipedia

    en.wikipedia.org/wiki/Free_body_diagram

    The x direction may be chosen to point down the ramp in an inclined plane problem, for example. In that case the friction force only has an x component, and the normal force only has a y component. The force of gravity would then have components in both the x and y directions: mg sin( θ ) in the x and mg cos( θ ) in the y , where θ is the ...

  5. List of common physics notations - Wikipedia

    en.wikipedia.org/wiki/List_of_common_physics...

    direction: unitless impact parameter meter (m) differential (e.g. ) varied depending on context differential vector element of surface area A, with infinitesimally small magnitude and direction normal to surface S: square meter (m 2) differential element of volume V enclosed by surface S

  6. Four Symbols - Wikipedia

    en.wikipedia.org/wiki/Four_Symbols

    The Four Symbols are mythological creatures appearing among the Chinese constellations along the ecliptic, and viewed as the guardians of the four cardinal directions. These four creatures are also referred to by a variety of other names, including " Four Guardians ", " Four Gods ", and " Four Auspicious Beasts ".

  7. Graphic organizer - Wikipedia

    en.wikipedia.org/wiki/Graphic_organizer

    A graphic organizer, also known as a knowledge map, concept map, story map, cognitive organizer, advance organizer, or concept diagram, is a pedagogical tool that uses visual symbols to express knowledge and concepts through relationships between them. [1]

  8. List of physical quantities - Wikipedia

    en.wikipedia.org/wiki/List_of_physical_quantities

    Measure of the extent and direction an object rotates about a reference point kg⋅m 2 /s L 2 M T −1: conserved, bivector Angular velocity: ω: The angle incremented in a plane by a segment connecting an object and a reference point per unit time rad/s T −1: bivector Area: A: Extent of a surface m 2: L 2: extensive, bivector or scalar ...

  9. Direction, position, or indication sign - Wikipedia

    en.wikipedia.org/wiki/Direction,_position,_or...

    A direction sign, more fully defined as a direction, position, or indication sign by the Vienna Convention on Road Signs and Signals, is any road sign used primarily to give information about the location of either the driver or possible destinations, and are considered a subset of the informative signs group. Direction signs are far more ...