Recent content by smithisize

Homework Statement Draw all nonisomorphic, simple graphs with four nodes. (Hint: There are eleven such graphs!) Homework Equations N/A The Attempt at a Solution Well if you can imagine a square with the nodes as the vertices and no arcs connecting them, I figure that's isomorphic...

Oh ok, that is my mistake, though first instance was m = 1. And the phase difference being a multiple of pi makes sense, because at 2pi basically there is constructive interference, and half way between 0 and two pi there is destructive, hence the multiples of pi. Cool, thanks a lot...

Well I thought m should equal 1 because we're looking for the first instance of destructive interference to minimize the thickness of the coating. Why isn't it 1?

Shouldn't it be δ= 2*Pi(m+1/2) as I did? Or should it be simply 2*Pi and I'm confusing my equations?

Homework Statement Glass, despite being transparent, still reflects a little bit of light. When making lenses and such, you'd rather not waste any light with stray reflections. Fortunately, you can use destructive interference to suppress those reflections. The picture below shows a piece of...

3Rλ/2d Since the minimum is halfway between both maximums. Meaning, Rλ/d + Rλ/2d = 3Rλ/3d Thanks, I appreciate it. Brain is about quitting on me, sorry I didn't get it more quickly!

Yeah. To find a max it should be: Y = mRλ/d I'm trying to visualize how that's helpful. So, if ~~~ is destructive and whitespace is constructive, this is what I'm imagining: | |~~~~~| |~~~~~| | If finding the location of the 2nd order fringe (aka max) would be...

Homework Statement A double-slit interference experiment is done in a ripple tank (a water tank using a vibrating rod to produce a plane wave on the surface of the water). The slits are 6.00 cm apart, and a viewing screen is 2.15 m from the slits. The wave speed of the ripples in water is...

Well, the vector equations for dr are R\hat{i} -(d/2)\hat{j} and R\hat{i}+(d/2)\hat{j} therefore the vector sum states that the vertical component cancels out. But, I ended up figuring it out. If you draw the b-field for the top wire, and manipulate theta (of the upper left corner of a...

Homework Statement Two long parallel wires are a center-to-center distance of 4.90 cm apart and carry equal anti-parallel currents of 3.70 A. Find the magnetic field intensity at the point P which is equidistant from the wires. (R = 10.00 cm)...

Well thanks to both of you for your replies, really helped me out!

Thanks, I appreciate it. So, I think I should probably become more familiar with using the KVL sys of eqns. Not my strong point. Given the eqns I posted above, I substituted I2+I3 for I1 then solved for I3 (using the 1st eqn) and got I3 = (V - I2R0)/(R0+R2) Then I plugged that value into my...

Homework Statement I'm really looking for help with A.) because I think that if I could figure out A.) the rest should be ok. So, here are all parts of the question, but I'm really only concerned with A at the moment! The diagram below depicts an RC-circuit where C = 5.40 F, R0 = 14.5Ω ...