Recent content by fatsack

so r1=(d/2)-thickness that makes a lot more sense and yielded a correct answer! thanks a bunch!

I don't know the correct answer. so what I did was used the aforementioned formula and insterted all the values(after converting them). My guess is I went wrong somewhere with the (1/r1-1/r2). I used the thickness for r1 and the diameter of the sphere/2 for r2. anyway, here is the what I got...

Homework Statement A cell membrane is composed of lipid molecules and approximately 10.29 nm thick. If the dielectric constant of the lipid is kappa= 5 , what is the approximate capacitance of a spherical cell that has a diameter of 10.29 micro meters? Homework Equations E=KQ/r^2...

amslater:you need to convert mm to m