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  1. en.wikipedia.org › wiki › ForceForce - Wikipedia

    1 day ago · Category. v. t. e. In physics, a force is an influence that can cause an object to change its velocity, i.e., to accelerate, meaning a change in speed or direction, unless counterbalanced by other forces. The concept of force makes the everyday notion of pushing or pulling mathematically precise.

    • Pound-Force

      The pound of force or pound-force (symbol: lbf, sometimes lb...

  2. 6 days ago · Classical mechanics. In physics, work is the energy transferred to or from an object via the application of force along a displacement. In its simplest form, for a constant force aligned with the direction of motion, the work equals the product of the force strength and the distance traveled.

  3. May 3, 2024 · Fundamental force, in physics, any of the four basic forcesgravitational, electromagnetic, strong, and weak—that govern how objects or particles interact and how certain particles decay. All the known forces of nature can be traced to these fundamental forces.

    • The Editors of Encyclopaedia Britannica
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  5. 22 hours ago · The U.S. Armed Forces are one of the world's largest military forces in terms of personnel. They draw their personnel from a large pool of professional volunteers. The U.S. has used military conscription, but not since 1973.

  6. 2 days ago · The United States Air Force (USAF) is one of the six branches of the United States armed forces. Its primary responsibility is for air warfare and air defense. The USAF was created as a standalone entity in 1947, but the history of American military activity in the air dates to at least the 1860s.

    • The Editors of Encyclopaedia Britannica
  7. May 21, 2024 · Coulomb force, attraction or repulsion of particles or objects because of their electric charge. One of the basic physical forces, the electric force is named for a French physicist, Charles-Augustin de Coulomb, who in 1785 published the results of an experimental investigation into the correct.

  8. May 6, 2024 · Gravity is the force by which a planet or other body draws objects toward its center. The force of gravity keeps all of the planets in orbit around the sun. What else does gravity do? Why do you land on the ground when you jump up instead of floating off into space? Why do things fall down when you throw them or drop them?

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