Recent content by Pixter

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...

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...

Oki done it know.. and it made perfect sense..=)

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 =(

but surely the average A confined in the magentic field during dt must be half A.. therefore the average Induced emf must be -d(A/2)/dt or?

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...

yeah so the average emf induced would be d(A/2)/dt ?

If we have a loop with radius 12 cm that lies in a uniform magnetic field of 1.5T. The magnetic field is in the positive z direction and the loop lies in the horizontal xy-plane. Now if the loop is removed from the field in a time interval of 2.0x10^-3 s what will the average induced emf be...