1. Homework Statement
thin wire connecting two conductors, a big sphere and a small sphere. What sphere has the most charge?
2. Homework Equations
3. The Attempt at a Solution
The charge will want to distribute itself over the entire surface area of the two conductors...
1. Homework Statement
Two point charges sit on either side of large grounded conducting plane. Give an expression for the force experienced by the charge on the left hand side. There is a neg charge on one side and positive charge on the other side.
2. Homework Equations
The...
1. Homework Statement
What is the force from an infinitely long cylindrical magnet on a magnetic dipole?
2. Homework Equations
M=Mz (given in problem)
3. The Attempt at a Solution
My argument for this solution that since the magnetization is in the z direction and the cylinder...
1. Homework Statement
Imagine water in a metal bowl that is open to air. This metal bowl is grounded. You add some NaCl to the water. What would the distributions of the ions look like in the water.
2. Homework Equations
I think this doesn't need equations, but just general...
1. Homework Statement
Two equal sized spherical conductors are connected with a wire. Charge is placed in one conductor. What is the electric field look like?
2. Homework Equations
E=q/4pi*ep*r^2
3. The Attempt at a Solution
I think that since these two conductors are...
1. Homework Statement
What would the electric field lines look like if two opposite charges were placed within an infinite plane conductor?
2. Homework Equations
None that I am aware of.
3. The Attempt at a Solution
I know that electric field is 0 inside of the...
1. Homework Statement
I am basically given a cone with uniform volume charge and told to find the area of highest electric potential.
2. Homework Equations
I want to use the equation: V= q/4piEr
3. The Attempt at a Solution
I am having trouble finding anything in my book. I...
1. Homework Statement
Is this a traveling wave? If so, find the speed and direction.
e^-(a^2y^2+b^2t^2-2abty)
2. Homework Equations
Probably relevant to know the differential wave equation.
3. The Attempt at a Solution
I have a feeling that this is a traveling wave as it is...
If I convert the denominator as given in the problem I end up with: i r^2 sin(x)+r^2 (-cos(x))+1 I don't see how I can make a conjugate with 3 variables here? Am I missing something? I have went over this several times in attempt to make sure I hadn't made a mistake......
1. Homework Statement
Express (see attachment) with a real denominator
2. Homework Equations
Not sure if there is really relevant equations to use here.
3. The Attempt at a Solution
First I multiply the top and bottom by the exponential. That gives me e^ix/(e^ix-r^2). I...
1. Homework Statement
Given: see attachment
Five additional electrons are placed at the origin. What is the electric field now.
2. Homework Equations
Electric field equations of E=q/(4pi*Eo*r^2)
3. The Attempt at a Solution
I am wondering if the electric field would just be...
Yeah but the question is what is What is arg(iz) so doesn't that mean that I mult i times 2-i to give me 1+2i?
I think what you just said would be for arg(z). correct?
1. Homework Statement
I need help on a little review please. z=2-i What is arg(iz)
2. Homework Equations
Well iz= 1+2i
3. The Attempt at a Solution
I think this should end up being arg(2i/1) But this doesn't seem to make sense because I am wanting to find an angle here...
1. Homework Statement
Derive an analytic forumula for a CDF
2. Homework Equations
3. The Attempt at a Solution
All I really want to know is what an analytic formula is? I know that the CDF is basically an integral of the PDF. I have looked all over the internet and can not...
1. Homework Statement
The 3s state of Na has an energy of -5.14 eV. Determine the effective nuclear charge.
2. Homework Equations
Zeffective = Z - S (not listed in text book, found this online when trying to figure out the problem)
3. The Attempt at a Solution
Nothing in the...
1. Homework Statement
This is the circuit in question. # 31. R1-R3 = 2 Ohms R4=16Ohms R5= 8 Ohms
R6=4Ohms i6=1.4Amps
2. Homework Equations
V=i*R
3. The Attempt at a Solution
I see R5 and R6 as being in series, therefore r5*i6=11.2V
r6*i6=5.6V
Then I add them...
ok.... I will show you what I have. I don't know Fe or Theta.....That is where I am hitting a roadblock. mg= .098N
Fe=Tsin(theta)
mg=Tcos(theta)
Fe/mg=Tan(theta)
Am I still overlooking something?
1. Homework Statement
What is the distance(d) separating the charged particles dangling on the pendulum?
Length of Nonconducting string=120cm
mass of particles= 10g
Charge q = 1.2*10^-8
2. Homework Equations
Fe=(k*q^2)/d^2
3. The Attempt at a Solution
I think I...