Technically I'm supposed to have a total of 8 optical modes but only 4 of them were seen in a solid (by spectroscopy). So I suspect there's some degeneracies and symmetries involved, but I don't know which ones.
I have two sets of assigned degeneracies:
frequency; degeneracy set 1; degeneracy...
I'm stumped as to how many optic branches (modes) are present if there are X number of molecules in a unit cell and Y number of atoms in each molecule.
I know that each individual atom has 3 degrees of freedom and more generally in a single unit cell, there are 3 acoustic branches (modes) and...
I was given 0.222 V.
0.197 V would be for a saturated chloride solution, ooh, oups, that belongs to a followup problem (not relevant to this thread), I see what you mean now. It should say 0.222 V not 0.197 V
ah yes I forgot to put that negative sign on my post. So RHE at pH 7 = 0.4137 V should really be read as RHE at pH 7 = -0.4137 V
everything below that assumed that sign was there in the first place.
Are my signs or thinking inconsistent? I was trying to think of everything in terms of SHE...
Homework Statement
Change your electric potential readings from a Ag/AgCl system to a RHE (reversible hydrogen electrode) system at pH 7.
For example, 0.3 V vs Ag/AgCl and -0.1 V vs Ag/AgCl
Homework Equations
Ag/AgCl 0.222 Volts
RHE 0 - 0.0591*pH Volts
The...
It's clear but there's 2 follow-up questions in my mind.
In your example, you had:
V = V2cos(θ1 + φ)
So you are saying that:
θ2 = θ1 + φ = (ωt) + φ = a new phase angle?
Relating this back to impedance, curious, "if" the frequency was the same for both the current and voltage, does that...
We talked about AC circuits and phase shifts were discussed. Voltage changes "lag behind" current changes so that's how we get phase shifts. It's like a sinusoid so fine. Then we talked about impedance.
There's a real and "imaginary" component to impedance, graphed on x-axis and y-axis...
Homework Statement
Let A be a set
prove relation R, defined as R : = {<c,d> \in A x A | T } is an equivalence relation on A. What's the quotient A / R ?
2. Relevant Info
the x in A x A means the Cartesian product
T means "always true"
set theory briefly covered in class
The Attempt...
Homework Statement
* note that I meant fields in the abstract mathematical sense, notphysical (i.e. electric) fields! *
Finding the determinant of a matrix in GF(28)
I want to know if it is using mod 256 or mod 255 in the field of GF(28)
Homework Equations
Just math
The...
obviously 3, 6, 9, etc... as I originally thought, but that would be almost too easy. Would this set "skip" over number 51 (which is 17x3) and 102 (17x6), ... etc? Should this set just be listed from 3 to 48? or can I just list 3, 6, 9 and then put a "..." and assume others will know what I...