Recent content by albertsmith

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    Engineering Mechicanical Engineering Recomended Courses

    I'm going into my 3rd year of Mechanical Engineering and for this Fall 11' my major courses are: ME 211—Fluid Mechanics I 4 ME 325—Intermediate Thermodynamics 3 I need to add 2 more classes from the following list: ECE 210—Electrical Circuit Analysis 3 CME 261—Materials for Manufacturing 2...
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    Engineering Mechanical or Electrical Engineering?

    I think you should go for Mechanical, I think this would be more fun for you and it involves lots of physics, and you actually design cool things. Most of the stuff you design is on autocad, age doesn't matter I started to go to school when I was 25 what matters if you are disciplined, have an...
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    Why Do Energy Levels in Multielectron Atoms Differ from Hydrogen?

    In a multielectron atom, the lowest-l state for each n (2s, 3s, 4s, etc.) is significantly lower in energy than the hydrogen state having the same n. But the highest-l state for each n (2p, 3d, 4f, etc.) is very nearly equal in energy to the hydrogen state with the same n. Can someone please...
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    Archived Four lowest vibrational states of these ions

    Homework Statement In most metals, the atomic ions form a regular arrangement called a crystal lattice. The conduction electrons in the sea of electrons move through this lattice. The figure (Intro 1 figure) is a one-dimensional model of a crystal lattice. The ions have mass m , charge e ...
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    Graduate The probe passes over an atom that is 3.20×10^2 nm tall.

    I figure it out :)
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    Graduate The probe passes over an atom that is 3.20×10^2 nm tall.

    Yes this is my homework, can you give me a hint
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    Graduate The Hydrogen Atom: An Unique Case of Quantum Numbers

    Why is the hydrogen the only atom that depends only on principal quantum number n and for all other elements, energies depend on both orbital quantum number and principal quantum number?
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    Graduate Explaining the Hydrogen Atom Wave Function Paradox

    The hydrogen atom 1s wave function is a maximum at r = 0. But the 1s radial probability density, peaks at r = Bohr radius and is zero at r = 0. can someone explain this paradox?
    • albertsmith
    • Thread
    • Atom Function Hydrogen Hydrogen atom Paradox Wave Wave function
    • Replies: 2
    • Forum: Quantum Physics
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    Graduate Understanding the Energy Differences in Multielectron Atom States

    In a multielectron atom, the lowest-l state for each n (2s, 3s, 4s, etc.) is significantly lower in energy than the hydrogen state having the same n. But the highest-l state for each n (2p, 3d, 4f, etc.) is very nearly equal in energy to the hydrogen state with the same n. Explain?
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    Graduate The probe passes over an atom that is 3.20×10^2 nm tall.

    The probe passes over an atom that is 3.20×10^2 nm "tall." The probe passes over an atom that is 3.20×10^2 nm "tall." By what factor does the tunneling current increase?