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NSX

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Posts posted by NSX

  1. alt_f13 said in post # :

     

    This thread was part of an in-depth look into the human behavioral system, mainly used for observing how people react when faced with a controversial, provocative suggestion.  ie, I was pulling your legs.

     

     

     

    [Got Sarcasm?]

     

    DancerB said in post # :

    I think you don't really know what you're talking about. I think that information is completely false and where ever you got that information was a messed up site.

     

    Video games surprise me. Most girls i know use the net for email, research, and chatting.

  2. hm...I'm not sure what NaC3H5O2 is, but when we had questions like these in CHem I, we know that it's a weak acid or base (since it's not a strong one).

     

    SO if it is a weak base or acid, the Na dissociates with the C3H5O2, and they undergo fwd. and bckwd. Rx until reaching an equilibrium. Usually, you need a Ka or Kb to solve these kinda' things, so you can figure out the concentration of H3O+.

     

    Then you can you the pH definition:

    pH = -log([H3O+])

  3. My little brother was part of a extra-cirricular science club last year.

     

    I noticed that what really gets kids excited is the Chemistry experiments.

     

    i remember the first time i saw vinegar poured onto baking soda

     

    so cool

  4. Actually, I was mistaken.

    The symbol e was first used by mathematician Leonhard Euler to represent the base of natural logarithms in a letter to another mathematician, Christian Goldbach, in 1731

    p. 341

    Logarithms were invented by the Scottish mathematician John Napier. Although he did not introduce the natural[i/] logarithmic functino, it is sometimes called the Napierian logarithm.

    p. 341

    Napier coined the term logarithm, from the two Greek words logos (or ratio) and arithmos (or number) to describe the theory that he spent 20 years developing and that first appeared in the book Mirifici Logarithmorum canonis descriptio (A description of the Marvelous Rule of Logarithms)

    p .315

     

    Larson, Hostetler, Edwards. Calculus 7th ed.

     

    InTeReStInG eH?

  5. greg1917 said in post # :

    The Bible.

     

    I've always wanted to do that too. =/ which version are you reading?

     

    Sayonara³ said in post # :

    Finished Catcher and Brave New World; I'm now on "Memoirs of a Geisha".

     

    Does anyone know if there's some sort of clever in-joke centered around the word "indefatiguable" in BNW? Huxley uses the word in every chapter without fail until about 2/3 of the way through, where he stops using it completely :confused:

     

    How is Catcher in the Rye? I hear its good, and i've been plannign to borrow it from me friend.

     

    indefatigable...kinda' like Lenina's performance? :eek:

     

    anywho, i'm just reading textbooks; i'm not as fortunate as you guys who have the freedom to choose what you read

    :rolleyes:

  6. Hades said in post # :

    like we typically do in orgo chem, natural log is much like an average that we use.... yet i still dont see the relationship.

     

    Like faf said.

     

    b/c we can easily do stuff like :lint:xndx, where n :neq: -1.

     

    But for n = -1, we can't do :lint:dx/x. i think i remember reading about a letter between euler and another mathematician (?) talking about this discrepancy. then, they created the function you now know as LN.

     

    Hades said in post # :

    Also, what purpose does this have when im using LN to determine graphically Ea of a reaction?

     

    YOu mean Ea? ACtivation Energy?

  7. newmember said in post # :

    As long as wavelength not too short (like visible light) the light interacting with matter can be seen as wave but when wavelength is shortens (frequency grows) the mathematical description of interaction must consider the light to be particle-like

     

    That's right.

     

    Some even go onto say that our (humans) wavelength is VEEERRRRRRRRYYYYYYYYY BBBIIIIIGGGGGGGGGGG and that's why we don't appear wavelike.

     

    I'm going to be reading about Quantum Physics in 2 days, i'll gladly put whatever i find cool

     

    :)

     

    agaubr said in post # :

    How do you explain the photoelectric efect if the photon has no mass?

     

    Ag

     

    THe photon excites the e- to a higher orbit, than nanoseconds later, the e- falls back down & emits the photon again.

     

    alt_f13 said in post # :

    If I were to convert photons to, say, electrons, would the gravity of the resultant electrons equal the gravity of the non coverted photons?

     

    Assume the conversion was 100% efficient.

     

    I'm not really sure how you would go about doign that... :confused:

     

    Force of gravity depends on mass, but mass is related to energy...

     

    sorry, this is beyond my scope of things

     

    maybe MrL?

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