Levels Definition and 471 Threads

if scientists are good at analyzing situtations, why aren't their EQ neccesary all that great?

My instructor was telling what would be on the upcoming test and he said something about:Given the velocity of an electron, the work function of a certain metal, and final energy level. We should be able to find the intial energy state. Sound pretty easy... to easy but here is what i was...

Where can I find the different energy levels (in eV) for Li (2+). I can't seem to find it in my textbook or on the internet.

All the articles and books I have read conflict with one another in safe levels of Gauss. I understand the Human limit is 2000 Gauss. Does anyone know what levels of Gauss are acceptable for everyday exposure? As I said, all reports I have read conflict one another.

I know this may sound extremely silly... but, all ice at the north pole is floating... creating mass that would make the ocean higher than it would be... would that ice not be there, when ice melts it takes up less volume than when it is frozen? How would the north and south poles melting raise...

I need to know: In a closed system sealed off from outside air, if water from a mass of basic water evaporates, will the pH of the air be affected? If so, when the air condenses, how wil the pH of soil in the closed system be affected? Thanks for the help.

Number of energy levels... I have been told that as were go further away from the nucleus, the energy levels get closer and closer together - do we get to a stage where we get no more? I assume we must because any energy above this causes the substance to ionise (ie the ionisation energy); but...

Bodies with high molarity of salt (salt levels) cannot sustain marine life? but why? please help. thanks!

In a post below relating to Hawking radiation, Chronos linked to a page that expressed the existence of virtual pairs as a product of energy and time limited by the Heisenbug uncertainty principle: \Delta E\Delta t\geq\frac{\hbar}{2} This simplified view neatly illustrates one of the...

How do I calculate the number of electrons with a given energy in a sample of hydrogen atoms at a certain temperature? For example how many electrons would be in the n=2 level at 3 Kelvin? And does it matter whether or not hydrogen is gas or liquid or solid i.e is a different calculation...

[FONT=Arial Black]A recording engineer works in a soundproofed room that is 43.5 dB quieter than the outside. If the sound intensity in the room is 1.00 10-10 W/m2, what is the intensity outside? Here is how I THINK I should be solving this problem. Intensity level = 10dB * log ( I /...

can anyone please provide me all the excited levels of Carbon 12 upto 22.6 MeV at least with jpi descriptions? Thanks in advance.

When radiation with a continuous spectrum is passed through a volume of hydrogen gas whose atomes are all in the ground state, which spectral series will be present in the resulting absorption spectrum? Where do i even start?

Are rotational energy levels of a molecule in general equally spaced or does the spacing increase with energy? How about a diatomic molecule; I have seen a derivation showing that the rotational levels in a diatomic molecule are equally spaced, but when drawn in an energy level diagram they...

i am having problems with the atom model part of physics, i know that the current model stats the electron location is a probability and all, its when i get to the wavelength and the energy, with all the ionization and the spectrums that i don't understand... how can i find the energy level...

Imagine two capacitors charged at the same voltage. Now, connect one of them to a high frequency switch, and then to the primary of a 1:100 transformer. On the secondary of this transformer, there is a diode bridge, and then, the second capacitor is connected. Will the voltage of the...

http://arxiv.org/abs/astro-ph/0401198 How many cosmological parameters? Andrew R. Liddle Astronomy Centre, University of Sussex, Brighton BN1 9QH, United Kingdom 29 January 2004 ABSTRACT Constraints on cosmological parameters depend on the set of parameters chosen to define the...

I have very little training in the area of Physics, but enough to understand most of what is said on this forum. This is a first time post. My question has to do with gravity on an atomic level. This question is for those of you familiar with trying to combine all four natural forces...

I have very little training in the area of Physics, but enough to understand most of what is said on this forum. This is a first time post. My question has to do with gravity on an atomic level. This question is for those of you familiar with trying to combine all four natural forces...

What is considered dangerous energy of EMP to blow away electronics equipment at 1m distance? How does concrete wall change that? And if concrete wall has metal rods in it? Can EMP be directional? ps. Any pointers?

Often times, the religiously drowned population, as well as just non-science people with honest intentions, like to use the word "theory" against a scientific concept. Let's face it, outside of the scientific community people know not a thing about science. To be widely considered a theory in...