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Intermediate5 equations~10 hours

Physics From Newton to Einstein

Classical mechanics through spacetime and energy.

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  1. 1

    Newton's Second Law

    Beginner
    F=maF = ma

    Force equals mass times acceleration—the fundamental law of motion.

    Physical Sciences
    Classical Mechanics
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  2. 2

    Universal Gravitation

    Intermediate
    F=Gm1m2r2F = G\frac{m_1 m_2}{r^2}

    Every mass attracts every other mass with a force proportional to their masses and inversely proportional to distance squared.

    Physical Sciences
    Classical Mechanics
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  3. 3

    Bernoulli Equation

    Intermediate
    P+12ρv2+ρgh=constantP + \frac{1}{2}\rho v^2 + \rho g h = \text{constant}

    Along a streamline, pressure, kinetic energy, and potential energy per unit volume sum to a constant.

    Physical Sciences
    Fluid Mechanics
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  4. 4

    Mass-Energy Equivalence

    Intermediate
    E=mc2E = mc^2

    Mass and energy are equivalent—a tiny amount of mass contains enormous energy.

    Physical Sciences
    Relativity
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  5. 5

    Einstein Field Equations

    Research
    Gμν+Λgμν=8πGc4TμνG_{\mu\nu} + \Lambda g_{\mu\nu} = \frac{8\pi G}{c^4} T_{\mu\nu}

    Curvature of spacetime is determined by energy and momentum—gravity is geometry.

    Physical Sciences
    Relativity
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