Recent content by Supra

My apologies, on reading the question again it seems the letters in the equation aren't meant to be vectors. So the equation is just a + 2s - 2t = 15 or to make it more simple: x + 2y - 2z = 15 where the letters are scalars I assume.

Homework Statement Find the unit normal to the plane a + 2s - 2t = 15. What is the distance of the plane from the origin? Homework Equations The normal to a plane is given by s x t For any plane, r.n = p [n = unit vector and p = constant]The Attempt at a Solution Not entirely sure what I'm...

Homework Statement Calculate the reflection coefficient of copper for radio waves at frequency 50Ghz and yellow light (wavelength = 0.6 micrometers) Homework Equations Reflection coefficient: R = E(r)^2/E(I)^2 = (1-n/1+n)^2 Where E(r) is the electric intensity of the reflected wave...

Ok well I've ran it through and found my impedance of 83Ω has an error of +- 0.168. Now that sounds a lot more reasonable to me, and I have to do another 4 impedances so I should be able to confirm they are realistic values. Many thanks for the help Dr Transport, and for a very useful link...

[SOLVED] Combination of uncertainties/errors when dealing with equations Greetings; I wasn’t sure exactly which section to place this so please move it if necessary. My problem is as follows: I have worked out an impedance for a coaxial cable, using the following formula: Z = (L/C)^1/2...