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  2. Archimedes' principle - Wikipedia

    en.wikipedia.org/wiki/Archimedes'_principle

    Continuum mechanics. Archimedes' principle (also spelled Archimedes's principle) states that the upward buoyant force that is exerted on a body immersed in a fluid, whether fully or partially, is equal to the weight of the fluid that the body displaces. [1] Archimedes' principle is a law of physics fundamental to fluid mechanics.

  3. Principal balance - Wikipedia

    en.wikipedia.org/wiki/Principal_balance

    The principal balance, in regard to a mortgage, loan, or other instrument of debt, is the amount due and owed to satisfy the payoff of an underlying obligation. It is distinct from, and does not include, interest or other charges. Amortized mortgage loans automatically pay a portion of each monthly payment to the principal balance, with the ...

  4. Compound interest - Wikipedia

    en.wikipedia.org/wiki/Compound_interest

    5%. 4%. 3%. 2%. 1%. The interest on corporate bonds and government bonds is usually payable twice yearly. The amount of interest paid every six months is the disclosed interest rate divided by two and multiplied by the principal. The yearly compounded rate is higher than the disclosed rate.

  5. Principal - Wikipedia

    en.wikipedia.org/wiki/Principal

    Principal (finance) or principal sum, the original amount of a debt or investment on which interest is calculated Principal (bond) , the face value of a bond Principal Financial Group , a life insurance company

  6. Amortization schedule - Wikipedia

    en.wikipedia.org/wiki/Amortization_schedule

    An amortization schedule indicates the specific monetary amount put towards interest, as well as the specific amount put towards the principal balance, with each payment. Initially, a large portion of each payment is devoted to interest. As the loan matures, larger portions go towards paying down the principal.

  7. Uncertainty principle - Wikipedia

    en.wikipedia.org/wiki/Uncertainty_principle

    v. t. e. Canonical commutation rule for position q and momentum p variables of a particle, 1927. pq − qp = h / (2 πi). Uncertainty principle of Heisenberg, 1927. The uncertainty principle, also known as Heisenberg's indeterminacy principle, is a fundamental concept in quantum mechanics. It states that there is a limit to the precision with ...

  8. Principal value - Wikipedia

    en.wikipedia.org/wiki/Principal_value

    Principal value. In mathematics, specifically complex analysis, the principal values of a multivalued function are the values along one chosen branch of that function, so that it is single-valued. A simple case arises in taking the square root of a positive real number. For example, 4 has two square roots: 2 and −2; of these the positive root ...

  9. Le Chatelier's principle - Wikipedia

    en.wikipedia.org/wiki/Le_Chatelier's_principle

    Le Chatelier–Braun principle analyzes the qualitative behaviour of a thermodynamic system when a particular one of its externally controlled state variables, say , changes by an amount , the 'driving change', causing a change , the 'response of prime interest', in its conjugate state variable , all other externally controlled state variables remaining constant.