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  2. Glossary of aerospace engineering - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_aerospace...

    A force can cause an object with mass to change its velocity (which includes to begin moving from a state of rest), i.e., to accelerate. Force can also be described intuitively as a push or a pull. A force has both magnitude and direction, making it a vector quantity. It is measured in the SI unit of newton (N).

  3. Non-contact force - Wikipedia

    en.wikipedia.org/wiki/Non-contact_force

    A non-contact force is a force which acts on an object without coming physically in contact with it. [1] The most familiar non-contact force is gravity, which confers weight. [1] In contrast, a contact force is a force which acts on an object coming physically in contact with it. [1] All four known fundamental interactions are non-contact ...

  4. Glossary of engineering: M–Z - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_engineering:_M–Z

    The device trades off input forces against movement to obtain a desired amplification in the output force. The model for this is the law of the lever. Machine components designed to manage forces and movement in this way are called mechanisms. [45] An ideal mechanism transmits power without adding to or subtracting from it.

  5. List of U.S. DoD aircraft designations - Wikipedia

    en.wikipedia.org/wiki/List_of_U.S._DoD_aircraft...

    Non-sequential designation (parentheses) No plain designation exists, only designations with mission modifiers and/or status prefixes (most common designation shown) – Designation not assigned A: 1962 redesignations from the 1956 Army system: AF: 1962 redesignations from the 1924 Air Force system: N: 1962 redesignations from the 1922 Navy ...

  6. Glossary of physics - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_physics

    The apparent outward force that draws a rotating body away from the centre of rotation. It is caused by the inertia of the body as the body's path is continually redirected. centripetal force A force which keeps a body moving with a uniform speed along a circular path and is directed along the radius towards the centre. cGh physics

  7. Air Force Specialty Code - Wikipedia

    en.wikipedia.org/wiki/Air_Force_Specialty_Code

    After the Air Force separated from the Army in 1947, it retained the Army's system of MOS occupation codes, modifying them in 1954. These were 5-digit codes; for example a maintenance data systems specialist was 39150 and a weather technician was 25170.

  8. Contact force - Wikipedia

    en.wikipedia.org/wiki/Contact_force

    Contact forces are often decomposed into orthogonal components, one perpendicular to the surface(s) in contact called the normal force, and one parallel to the surface(s) in contact, called the friction force. [1] Not all forces are contact forces; for example, the weight of an object is the force between the object and the Earth, even though ...

  9. Contact mechanics - Wikipedia

    en.wikipedia.org/wiki/Contact_mechanics

    The classical theory of contact focused primarily on non-adhesive contact where no tension force is allowed to occur within the contact area, i.e., contacting bodies can be separated without adhesion forces. Several analytical and numerical approaches have been used to solve contact problems that satisfy the no-adhesion condition.