Recent content by quantumfoam

Hi Tom. G, I apologize for not getting to you sooner. I have not had much time to work outside of school or get in the lab. However, today my EE professor and I went ahead and conducted some tests on the oscilloscope for some basic AC resistor circuits. We determined (with...

Update: So I went ahead and tried the above. Unfortunately, still wasn't executing the right phase angle. However, I was lucky enough to stumble into one of the new EE professors on campus yesterday. He came over and helped me in obtaining a phase angle. Strangely, as my professor explained...

I will definitely keep you guys updated if I find anything that helps solve this. I'm going to the lab today to investigate whether what I said works. Thank you very much for your help and understanding of the situation. I really appreciate it.

The oscilloscope is not mine, that's for sure. I could never own one of these without buying a relatively okay used-car first! I have read through the triggering options that the oscilloscope has. Unfortunately, I didn't have much knowledge on the subject of triggering. I did look up any useful...

I am assuming you mean the divisor that is in the inverse tangent function. The divisor is 2π. Thank you for responding and your feedback!

Hi guys, I am working on a project that involves measuring the phase angle between two sinusoidal voltages. The circuit under examination is an RL type (the resistor was in series with the inductor), where the phase of voltage across the inductor is measured relative to the voltage input of the...

Thank you very much!

I'm sorry. I don't think I understand how it doesn't matter for rotational curves. Could you please explain it a little more?

Hi guys. How do astrophysicists measure the redshift of electromagnetic waves from galaxies due to gravity without the use of General Relativity? If I can be more specific, how do astrophysicists know that the gravitational redshift of light emitted from some part of a galaxy or galaxy cluster...

Thank you for your time, mfb (:

So the protons composing the plasma would oscillate to give off energy according to the fourth power of their temperature as well?

I assumed the Stefan-Boltzmann (SB) law only applied to objects that had electrons since the SB law can be derived from Planck's law, which itself was derived on the assumption that the blackbody has oscillators. Since there are no electrons to oscillate around the protons in a pure proton...

If it were possible to trap a large number of charged particles, would the resulting mass of proton plasma lose power according to the Stefan-Boltzmann law? You said you would expect to see it, right? I always thought that an object couldn't emit blackbody radiation unless it had oscillators...

I've read that non-neutral plasmas are actually easier to confine. They can be confined for long periods of time using a Penning Trap. I am guessing that they supply energy to the plasma to compensate for losses. However, does the plasma lose energy due to the Stefan-Boltzmann law? I am aware of...

Hi guys. I had a question concerning a pure proton plasma with a given temperature and its loss of energy due to the Stefan-Boltzmann law. From my understanding, the Stefan-Boltzmann law applies to objects that contain electrons. I don't think that's true but I would like to know if it is. If...