Recent content by Steve13579

Thanks for clarifying sophiecentaur!

So could you say though that the amplitude is due to the rate of photons being emitted? Not trying saying the wave is photons though in that case.

Thanks that really cleared it up for me Drakkith! One last clarification I may need if you don't mind was on what norlesh had said: Zero total energy when an EM wave passes a point in space?

I am curious on what is meant by amplitude in an EM wave. From all the searching I have done the amplitude has something to do with the density of photons in the EM wave, and the frequency with energy of the photons. The part I am confused about is the fact that the wave is oscillating. I...

I forgot about that.. Thanks so much!

Got it, makes sense! It helped to think of the limitations of my calculator computing arctan with only one value input rather than two if that makes sense... If you wouldn't mind I came across something that is probably a similar situation. I have -2∠0°/(0.45-j0.15) which I turned into...

Homework Statement Calculate the phasor notation for -43.62+j20.52 My answer is 180 degrees off and I don't know why you add it in this case. I just want to know how to calculate angle, the magnitude I found fine. Homework Equations tan-1(X/R)The Attempt at a Solution tan-1(20.52/-43.62) =...

Thanks guys! My exam actually had two series capacitors, but it wanted voltage on one after a given time knowing current. I used C calculated from both capacitors and found overall voltage using 1/C integral i(x)dt, than used a ratio between the two capacitors. Is there a more direct root? And...

I figured it out, sort of. You set up: C(dv/dt) + (v-4)/(100k) = 0 and C(dv/dt) + (v-8)/(100k) = 0 where C = 2uF The part I still don't understand is why capacitance is the same for both equations but voltage is not.

I am hoping that general physics is the correct location for this problem, but if I am wrong please say so. I have a problem where two capacitors of different value are in series and are attached to a DC source. Homework Statement Image is a bit blurry but that is how our professor...

Thanks for taking the time to answer my question. And yes the main point is to do just the integration. I'm taking calculus 3 currently and have already worked it out, took awhile. I was mostly just curious if an engineer would ever use such an equation. I could see the practicality of using...

Hello all, I was curious on the practical applications of representing a sphere in four dimensions. I recently had to prove that the V=∏2R4/2. I hope I was able to format that correctly. Anyways I couldn't come up with a reason to do some beyond simply proving it for proofs sake. Perhaps...