Recent content by rgold

If they get absorbed they would not be reflected right? But I don't know how to translate this

1. The problem statement, all variables and given/known da A soap bubble 500 nm thick is illuminated with white light. The index of refraction of this unique soap film is 1.35 for all colors (no dispersion). a) What wavelengths are not reflected? Homework Equations 2nt=mL 2nt=m(L/2) The...

Homework Statement Compute the following parameters of the final image formed by the lens system shown in the figure below a) position b) size c) nature (Real, Virtual, Upright, Inverted, Etc.) Homework EquationsThe Attempt at a Solution i am kind of lost at where to begin...

or do i need to look at it as a dipole moment?

at first i thought i should be using (1/(4*πε0))*((q1q12)/r) is this correct? and should my answer have an 'a' is it?

So would it be ((4*1/4πε)-(-4*1/4πε))/a?

Wouldn't that be the work that I'm looking for?

kQq/r

I think I am just getting more confused and that I should start from the beginning... What is the best way to go about this problem?

would it be (( 4*1/4 pi Ԑ *4) - (2*1/4 pi Ԑ *-4))/a?

Homework Statement A wire carrying a charge density of λ=.1c/m is bent into a circle of radius r = 5 cm. What is the electric potential at the center of the circle Homework EquationsThe Attempt at a Solution λ/2Ԑ0 is this right? i do not really understand it or where my radius went

Homework Statement two particles with charges 4e and -4e are fixed at the vertices of an equilateral triangle with sides of length a. If k=1/4 pi Ԑ what quantity of work is required to move a particle with a charge q from the other vertex to the center of the line joining the fixed charges...

thank you very much!

that was a typo i meant to write .3 m^2. ok i used the 8.85*10^-12 and got 4.71N is this more accurate

U= (Q^2)/(2c) = (Q^2)/(2ԐA) d and F=(dU)/(dd) = (-Q^2)/ (2ԐA)? so F= (5*10^-6C)^2/(2 * 10^-11 *.3)? is the answer then 4N?