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  2. List of common physics notations - Wikipedia

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

    299,792,458 meters per second (m/s) speed of sound: meter per second (m/s) specific heat capacity: joule per kilogram per kelvin (J⋅kg −1 ⋅K −1) viscous damping coefficient kilogram per second (kg/s) electric displacement field also called the electric flux density coulomb per square meter (C/m 2) density

  3. Parts-per notation - Wikipedia

    en.wikipedia.org/wiki/Parts-per_notation

    Note however, that specific disciplines such as oceanography, as well as educational exercises, do use the "ppt" abbreviation. "One part per thousand" denotes one part per 1,000 (10 3) parts, and a value of 10 −3. This is equivalent to about ninety seconds out of one day. One part per ten thousand is denoted by the permyriad sign (‱).

  4. Lists of physics equations - Wikipedia

    en.wikipedia.org/wiki/Lists_of_physics_equations

    In physics, there are equations in every field to relate physical quantities to each other and perform calculations. Entire handbooks of equations can only summarize most of the full subject, else are highly specialized within a certain field. Physics is derived of formulae only.

  5. Energy intensity - Wikipedia

    en.wikipedia.org/wiki/Energy_intensity

    Bangladesh, with a population of 144 million and a GDP of $275.5 billion therefore has a GDP per capita of approximately $2,000. Its annual energy consumption was only 0.61 quad (0.64 EJ), making its Energy Intensity a mere 2,003 BTU (2,113 kJ) per dollar—a quarter of the US rate. Low standards of living and economic performance primarily ...

  6. List of physical quantities - Wikipedia

    en.wikipedia.org/wiki/List_of_physical_quantities

    Stored charge per unit electric potential farad (F = C/V) L −2 M −1 T 4 I 2: scalar Catalytic activity concentration: Change in reaction rate due to presence of a catalyst per unit volume of the system kat⋅m −3: L −3 T −1 N: intensive Chemical potential: μ: Energy per unit change in amount of substance J/mol L 2 M T −2 N −1 ...

  7. δ15N - Wikipedia

    en.wikipedia.org/wiki/Δ15N

    Two very similar expressions for δ 15 N are in wide use in hydrology. [2] Both have the form 1000 ⋅ s − a a {\displaystyle 1000\cdot {\frac {s-a}{a}}} ‰ (‰ = permil or parts per thousand) where s and a are the relative abundances of 15 N in respectively the sample and the atmosphere.

  8. Orders of magnitude (power) - Wikipedia

    en.wikipedia.org/wiki/Orders_of_magnitude_(power)

    eco: average power consumption per person in the United States in 2008 (87,216 kWh/year) 1.4 × 10 4 W tech: average power consumption of an electric car on EPA's Highway test schedule [25] [26] 1.45 × 10 4 W astro: power per square metre received from the Sun at Mercury's orbit at perihelion: 1.6–3.2 × 10 4 W

  9. Orders of magnitude (energy) - Wikipedia

    en.wikipedia.org/wiki/Orders_of_magnitude_(energy)

    Yearly electricity consumption in the U.S. as of 2009 [181] [203] 1.4×10 19 J: Yearly electricity production in the U.S. as of 2009 [204] [205] 5×10 19 J: Energy released in 1 day by an average hurricane in producing rain (400 times greater than the wind energy) [179] 6.4×10 19 J: Yearly electricity consumption of the world as of 2008 [206 ...