Recent content by Boltzman Oscillation

Now that I was reminded of the photoelectric effect then I know conductors are affected by light. Thank you for the thought producing questions, they helped me remember things and make new neurological connections!

Err when you asked me this I thought about the fact (i forgot the name) that if you shine light to a conductor then some of the electrons of the material will be sent flying out of the material. Oh, the photoelectric effect. Difference between radio and micro waves are many: energy, frequency...

Hi all, as we all know EM waves are made up of magnetic and electric waves in a plane perpendicular to the direction of propagation. Given this, why don't I see conductors being affected when I shine light at them? Woulnt the magnetism cause a force? Is is that the force is too small? What am i...

Ah, okay now I understand. The cross product does not show that the dB is only on the z axis so I must make that change myself. Once I took this into effect then my equation equaled that equation which I was supposed to have, many thanks!

Im sorry but what is the apex half angle? From what I've gathered so far my current equation is $$\frac{I*a*d \theta *r}{r^3}\vec{d}$$ I would somehow have to show that r = a which it isn't so I know somewhere a long the way I did something wrong. I thought that by solving the cross product...

Yes, theta is not the angle between the vectors dl and r, I forgot to label the angle on the drawing. I think I can assume that angle to be close to 90° if the point is very far away but that would still not get me the answer that was provided.

Hi all, my work is shown on the attached image. The boxed equation is what I get to but I do not understand how to go from there to what the book has. I am guessing that the problem arises when trying to solve the cross product. I understand that I will need to find the value of the sine of the...

I see what you mean. Thank you.

Ah, another classic problem. Thank you, I will try to work this one out similarly and see what I can get.

I'm sorry are you saying that the strength of the impact is not related to force? What do you mean by that? If I hit a ball with more force than someone else did to a similar ball than my ball would go further would it not?

Interesting, I should be asking why something is and not isn't in order to reduce the answers. Thank you for the advice!

Hi all, I was thinking punching a round ball on a flat surface and seeing how I could determine a formula for force from it. I thought the following: 1. The ball will go further the harder I punch and thus force must be proportional to displacement d. 2. Ball will go further if it is lighter...

I learned that going into college. I failed my second semester, all the classes. I got sent to community college and it took me around two years to work harder and that my happiness came from learning new things and a sense of accomplishment. Oh and good friends.

I really started enjoying telecommunications theory. The probability in telecom really complemented the probability I had in quantum mechanics. I also appreciated Information theory. Idk, maybe I should go to grad school for telecommunications. Sigh i don't know. I can't find a job and I feel...

Why go to grad school? I like learning physics and math. No other reason. My life loses meaning if I stop learning it. I also want to get to the good stuff! I don't find classical mechanics entertaining at all! That's why I chose electrical engineering and not mechanical.