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  1. Difference between theoretical equations and empirical equations

    Apr 24, 2016 · Other equations are empirical in the sense that they were selected only because they fit experimental data and without a theoretical justification. If we look at an equation can we identify …

  2. DISPLAYING UNIT CONVERSIONS IN MATHCAD EQUATION | Eng-Tips

    Sep 21, 2017 · Inside the empirical equation, you normalize the units to what's required for the formula, and then tack on the imposed units. That's my approach, and it allows you to use whatever units suit …

  3. T&P formula for capillary rise | Eng-Tips

    Aug 20, 2009 · That's where the D10/5 comes from, and their formula is the same as T&P and Soils in Construction. H & K also note that "Using this assumption (the one above) we can estimate a …

  4. Pairing term in semi-empirical mass formula and nature of spin ...

    Oct 13, 2023 · I have a silly confusion. The Pairing term of the semi-empirical mass formula tells that nucleons tend to pair up. I believe that pairing up means forming a state in which two nucleons …

  5. Empirical formulas for compressive yield strength? | Eng-Tips

    Dec 13, 2023 · I work with a diversity of materials. The properties of these materials aren't always well known in websites like MatWEB, Campus plastics... Compressive Yield Strength is seldom given for …

  6. Mathcad needs a "remove units" function. | Eng-Tips

    Dec 9, 2020 · But, for a typical empirical formula, you have to explain what the units are anyway, and the person has to have a crib sheet or a giant footnote that captures that information, and can still get it …

  7. The semi-empirical formula and $E=mc^2$ - Physics Stack Exchange

    Mar 30, 2015 · The semi-empirical formula is used to find the binding energy of a nucleus. But if you know the mass of a nucleus and the number of neutrons and protons that this nucleus consists of …

  8. Empirical Equations | Eng-Tips

    Apr 8, 2008 · I just had occssion to fix a problem that I've been having with a very complex empirical equation for several years. Units are a problem in equations with fractional exponents, logs, trig …

  9. Ac1 temperature calculation | Eng-Tips

    Jun 4, 2001 · Does anyone have an equation to calculate the Ac1/Ac3 temperature for steel from its chemistry? I am more interested in the Ac1. Any information you have would be helpful. Thank you.

  10. optics - Why does Cauchy's equation for refractive index contain only ...

    Dec 11, 2022 · 6 Cauchy's Equation is an empirical relation that defines the refractive index of a material in terms of wavelength: