Hello,
I've recently realized that i lack knowledge in all wave aspects(Communication\Physics\Mathematics).
I'm embarrassed to say that I can not explain what "bandwith" is, why Fourier analysis work, what is actutally a phase, how modulation works, how is intensity measured and what does it...
Thank you for answering!
i've redone my calculations and you are right, and it can be shown that no matter what is the probability of your first choice, it won't change
Hello,
I'm sure you are all well familiar with the monty hall problem, so i won't restate it.
there is also a similar problem: the Counterfeit coin problem.
A reminder of the problem:
Assume that you’re presented with three coins, two of them fair and the other a counterfeit that always...
That seems reasonable, I'm interested in they way these currents are equalized, the access charge in that section sticks to the surface of the wire(how does it get there??) and dampens I1 and Increases I2?
Hello,
I've always had problems conceptualizing the physics behind circuits, and it always felt like information is hidden from me.
Lately I've been trying to analyze circuits in the microscopic and electrostatic way, as i think it is crucial for real understanding of circuit concepts.
I've...
Cool,the first paragraph actually makes sense ,but I wonder if it is applied to our specific situation if there is still a standing wave..
When I mentioned SR, I meant that I'm not taking it into account, just the general principles of relativity such as "two observers moving with a constant...
cragar,you have a good point...it is a really good analogy.
but I still have a problem understanding "if the electron has a different wavelength in one frame of reference how can it still be a "standing wave""
"Is this really a problem? If you say the atom is moving wrt your FOR then the de B wavelength will not be constant all around the atom from your (the observer's) point of view. That would mean that the wave pattern of the electron would be distorted. "
It is a great problem, even bigger with...
Hello,
I've always wondered about the "relativity" of the De Broglie wavelength.
The wavelength depends on the momentum of the specific thing we are observing, thus on different frames of reference(F.O.R from now on :P) we might get different answers.
I have been looking through the web to...
Your mixing some stuff,
the velocity of the source is 20 m/s to the left, no doubt about that.
the velocity of sound in air is 335 m/s still no doubt about that.
You need to take the component of the velocity in the direction connecting the ambulance with the car.
to get that component it's...
When I first tried to solve it, I hadn't used your technique,I've explained mine in the first post of this thread,which is conceptually wrong , but logically(then..) was alright.
I've ended up adding all the contributions to the x direction and to the y direction instead of using it just once...
First, you have to convert km/h to m/s.
Next, does the source advance in the y direction?? does it advance in the X direction?
what is the source's velocity in y direction(if it has any..)?? what is the source's velocity in the X direction?
what should you plug in the equation?
Hi kuruman!
Thank you for the reply.
They haven't specified in the question that the electric field is uniform in the region,but I assume it's uniform otherwise you are right and problem would be impossible.
With your solution I get the same angle as in my solution!
But the magnitude of...