Homework Statement http://www2.warwick.ac.uk/fac/sci/physics/teach/module_home/px270/projects/c4s_projects07.pdf
it's the first example
Homework Equations
see aboveThe Attempt at a Solution
right i shouldn't have any probs with the programming but i need to understand the calcs that are put...
pretty sure you are wrong.. outside the spherical shell E will be proportinal to 1/r^2 as for any other spherical charge..
but inside the shell it will be proportinal to (1/r)-(1/r^2) following my equations, becuase the shell doesn't have uniform charge..
also note the shell is...
Homework Statement
Right have a shell that has a volym charge distribution P=(G/r^2) and with inner radius a and outer radius b.
Now what is the e-field at r<a, a<r<b, r>b
Homework Equations
gauss's law: surfaceint[E.da]=Qenclosed/epsilon0
Qenc=volymint[PdV)
The...
hej
have a ode that looks like this:
y'-xy=-x
so i find the particular integral which is e^-(x^2)/2
but then when i try to solve the eqn i have to do a integration by parts
ie:
ye^-(x^2)/2 = integrate[ -xe^-(x^2)/2 dx]
but when i do this integration by parts i end up with having to...
q: (set up the integral that you would use to find the volume of the solid described, evaluate the integral)
The region below the plane z+y=1 and inside the cylinder x^2+y^2 equal or less than: 1,0 equal and less to z equal and less to 1
this is what i have been trying:
tried
-sqrt1-x^2...
yes ment L^2 not y^2 at the bottom..
thanks for pointing out that.
so nobdy who knows exatcly how one goes from the firs tpoint of the bio savart law to the later (stated in the first post)
yeah so let's sat that we can use the trig but then how do i get it out to "normal" form so i...
so trying to understand the derivation of magentic field due to a long straight conductor:
so biot-savat says in this case:
B= u0I/4pi * integrate over L and -L for: xdy/(x^2+y^2)^(3/2)
and i should turn up with the answear:
B= (u0I/4pi)*(2L/xsqrt(x^2+y^2))
but can't do the...
have a question.
the viral eqn of state for one mole of aragon is:
pV=RT(1+B/V +c/V^2)
T is known and so is B and C. but p is not known.
initial V is known and so is final V.
the question is "find out the work of a reversible isothermal expansion at this temperature"
Know I'm wondering is...
does this make any sense to anybody?
q: A radiotelescope is postioned on a cliff overlooking the sea. A source of radiowaves, wavelength 3m rises above the horizon. At what angles will the source be above the sea when the intensity received by the radiotelescope has its first minimum and...
Q: Derive an expression for the Vout/Vi, the ratio of the output and source voltage amplitudes, as a function of the angular frequencie W of the source.
The L-R-C circuits looks like this..
source(ac)----------capacitor-----inductor----resistor----(back to start)
Vout is taken...
yeah they are parallel of course.. but just finding the displacement of them..
have done a diagram as well. but as I said I can't figure out what to start with. can't see the trig stuff in it =(
Okej have a piece of glass with refractive index n2 and tickness t.
A ray of light falls on the glass with the angle theta1 (from a medium with recrative index n1).
In the glass the ray has the angle theta2 and when it exits it has now got the displacement d (compared with the ray that...