thanks..
1- I've understood from you is that (correct me plese if I am worng) the BB "thermal" radiation is not continuous in the strict sense, but rather a discrete spectrus with too small gaps between emitted frequencies.
2- BB radiation and emission spectra in terms of the production: BB...
Hi,
I'm just wondering if Plank suggested that the quantum states and frequencies emitted are quantized, then why do we see a "continuous" spectrum of the BB radiation, not just discrete bands?
ah..I see..the problem is in assigning the system.
So, if all of these compose the system, and the energy lost as potential energy is gained as heat, then there is an "internal transfer" of energy between 2 components of the system.
I was trying to tackle the problem by assuming the system as...
ok...that seems a reasonable answer :)
but what about the stone. It does not experience a net work, but its energy state is reduced.
The decrease of an energy must be brought about by an energy crossing or passing/leaving the boundary of the system by means of an energy transfer mechanism...
Hi,
Now, we know that the work done on a system equals the change of energy of that system, amd if there is no work, then the energy change must be zero.
Now, suppose if I hold a stone by a string and let it drop while still holidng
it so that it falls at a constant speed to the ground.
My...
Hi,
thanks to all of you.
Wow..I didn't know my question is a topic of such controvestial arguments..I felt a bit that my question is somewhat philosophical.
What I meant by "real" is that it is a physical phenomenon that is , as pervect said, observer-independent.
I thought maybe these...
Hi,
Q1: Do the effects of time dilation and length contration really happen, or they seem to happen to us being in different inertial frame, because our means of observation ( say, by looking by means of coming relativistic beams of light) draw this illusion on us and show us something...
Hi dear,
I mean that for any ideology to be swallowed by people and be aceepted, it must recognize the dual nature of human. Any ideology that fails in some respect is due to the imbalance between these 2 sides. Take example, christianity concentrates on spirituality very much to the degree...
ok..if you are talking about the most fundamental existential level, then we must look at all existenting things, including metaphyiscal entities.
Now, don't confuse science with philosophy because they've got different subjects and can not deal with " the fundamental existence" like science...
well, I think they are distinct entities. Don't you observe that different existening entities have features that are contradictions. I mean like humans can reproduce (hence alive) but the stone can't. Now, if they were the same thing and had the same existence, then the same existence will be...
well.. it is reasonable question and has been asked from the start of the time when humans found themselves in this universe.
For me, I think the answer is simple. If we want to know why we are created and for what, simply we should ask the creator about that.
Now, in order to access the...
thanks a lot..it really helped me..
just to make sure I got it, when the parametrization gives a plane not curved surface, then ,in this special case, the surface integral will equal its double integral since the "shadow" will be the same as the surface, and dS will have " the length of cross...
The issue of man is an extremely important one. Today's civilizaion has based its religion upon humanism; that is, the originality and worship of man. It is assumed that various religions in the past shattered man's personality, and forced him to sacrifice himself for his gods, admit his...
Hi eveybody,
I'm having trouble in surface integrals. I know already what the double integrals measure; a multivariable function ( drawing surface) over "a region of domain"..
Now, the surface integrals are for surfaces given by 2-dependent parametrizations over " the surface".
my questions...