I'm studying wave propagation in the ionosphere, which can be modeled as a dielectric that has a magnetic field present. My understanding of it is that the Poynting vector that is associated with the wave in the medium is not generally in the same direction as the k vector (what I understand to...
Which is my point actually, if the hull breaks at a fixed/constant differential pressure, how could an absolute pressure be used in the equation, given all other things are constant?
Thank you for your reply, sorry for my lack of understanding but perhaps I should highlight the point that I'm confused about. In the given equation, my understanding is that all terms excluding pressure are the same regardless of surrounding pressure. However, since as you say that the pressure...
I'm tutoring a high-school level student where one of the questions is asking why fitting a vacuum pump to a popcorn maker would cause the popped kernels to get bigger. For those unfamiliar with popcorn :), it's modeled as a sealed hulled with starch and moisture inside. Heat causes the moisture...
Well yes, but isn't ECEF independent of geodetic/geocentric coordinates? Then in the last equation, this seems to suggest that x,y,z must fit a different equation for different geodetic latitudes.
I'm a little confused by what appears to me to be a paradox. I understand that the equation for an oblate spheroid is given by
\begin{equation}
\frac{x ^ 2+y^2}{a^2} + \frac{z ^ 2}{c^2}= 1, c < a
\end{equation}
where a and c are the semi-major and semi-minor axes respectively.
However, the...
Hi All, I'm doing an undergraduate project regarding QPTs for some variation of a AF Heisenberg hamiltonian. I'm a little confused about the change in relations between the critical exponents for a QPT. Some books/papers state that the quantum system in D dimensions is mapped to a classical D +...
@Born2beWire: It does. With the spheres ungrounded and isolated, the charges will separate with the opposite charges attracted towards the charged rod and the like charges moving away. The result is as you describe with the charges bunching up on opposite surfaces. A ground is a charge...
Emf is the work done by a Source in moving a unit charge across a circuit. P.D. is energy dissipated by some component in a circuit (e.g. resistor). Its like energy going in:emf and energy going out:pd.
if I have 2 spheres A and B initially neutral, isolated from ground and in contact with each other, when I bring a negatively charged rod near to sphere A, I understand that positive charges will be induced on A and negative charges on B. Suppose I were to ground the sphere (a wire either...