enow.com Web Search

Search results

  1. Results from the WOW.Com Content Network
  2. Weak interaction - Wikipedia

    en.wikipedia.org/wiki/Weak_interaction

    Scaled up by just one and a half orders of magnitude, at distances of around 3 × 10 −17 m, the weak interaction becomes 10,000 times weaker. [15] The weak interaction affects all the fermions of the Standard Model, as well as the Higgs boson; neutrinos interact only through gravity and the weak

  3. Gravity - Wikipedia

    en.wikipedia.org/wiki/Gravity

    In physics, gravity (from Latin gravitas 'weight' [1]) is a fundamental interaction primarily observed as a mutual attraction between all things that have mass.Gravity is, by far, the weakest of the four fundamental interactions, approximately 10 38 times weaker than the strong interaction, 10 36 times weaker than the electromagnetic force, and 10 29 times weaker than the weak interaction.

  4. Fundamental interaction - Wikipedia

    en.wikipedia.org/wiki/Fundamental_interaction

    In quantum mechanics, physicists often use the terms "force" and "interaction" interchangeably; for example, the weak interaction is sometimes referred to as the "weak force". According to the present understanding, there are four fundamental interactions or forces: gravitation , electromagnetism, the weak interaction , and the strong interaction.

  5. Hierarchy problem - Wikipedia

    en.wikipedia.org/wiki/Hierarchy_problem

    In particle physics, the most important hierarchy problem is the question that asks why the weak force is 10 24 times as strong as gravity. [10] Both of these forces involve constants of nature, the Fermi constant for the weak force and the Newtonian constant of gravitation for gravity.

  6. Non-contact force - Wikipedia

    en.wikipedia.org/wiki/Non-contact_force

    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 forces: [2] Gravity, the force of attraction that exists among all bodies that have mass. The force exerted on ...

  7. Neutrino - Wikipedia

    en.wikipedia.org/wiki/Neutrino

    The weak force has a very short range, the gravitational interaction is extremely weak due to the very small mass of the neutrino, and neutrinos do not participate in the electromagnetic interaction or the strong interaction. [4] Thus, neutrinos typically pass through normal matter unimpeded and undetected. [2] [3]

  8. Gravitational constant - Wikipedia

    en.wikipedia.org/wiki/Gravitational_constant

    This is because the gravitational force is an extremely weak force as compared to other fundamental forces at the laboratory scale. [d] In SI units, the CODATA-recommended value of the gravitational constant is: [1] = 6.674 30 (15) × 10 −11 m 3 ⋅kg −1 ⋅s −2. The relative standard uncertainty is 2.2 × 10 −5.

  9. Equivalence principle - Wikipedia

    en.wikipedia.org/wiki/Equivalence_principle

    The equivalence principle is the hypothesis that the observed equivalence of gravitational and inertial mass is a consequence of nature. The weak form, known for centuries, relates to masses of any composition in free fall taking the same trajectories and landing at identical times.