Recent content by Bigworldjust

Also one last question. When expressions are functionally equivalent like the two above, can they always be reduced to being identical? I am assuming yes, because they are equal to begin with, correct?

No it's a worked example left for us to solve if we wanted extra practice. And that's what I thought initially. So it is using the distributive property and then the complement theory. Thank you.

Hi I am not sure where to post this question but I am trying to simplify this expression: r*c'w+c (As in R AND NOT C AND W OR C) to c+wr (As in C OR W AND R) and I know that it simplifies to this and they are both equivalent; however my question is which boolean simplification property is...

Ah, that was my error. So the answer was 1.02. Thanks for the help!

Damn, it was wrong, lmao. I still have one more try though luckily. You think there is somewhere I went wrong after rechecking it?

Homework Statement The electric field in a 1.2mm x 1.2mm square aluminum wire is 2.0×10^-2 V/m What is the current in the wire? I = ?A Homework Equations E = V/length R = ρL / A I = V/R = V*A/ ρ*L The Attempt at a Solution Electrical field strength E = V / length = 2 x 10^-2 V/m...

Ah, I finally got it. Thanks a lot for all of your help, I really appreciate it.

Alright I got 8.439 nC/m and that is still wrong, lol. Damn, I don't know where I'm going wrong. I'm plugging in everything: I got: m = 1.67*10^-27 kg r = .012m f = 1.6*10^6 Hz k = 9*10^9 N*m^2/C^2 q = 1.6*10^-19 C

Hmm I got 5.57*10^-33 and that still seems to be wrong, lol.

Oh, so I have to convert the rotation speed to its period? So it would be 1/1300000?

I submitted it through Mastering Physics and it said it was wrong, lol. I'm not sure if its the units because the answer is suppose to be in nC/m, but I am pretty sure it cancels out accordingly. Hmm..

Alright so I got λ = 2π^2mr^2/kqt^2. I plugged in the numbers and got the same answer as before though, lol.

Ah, okay, so I have it set up like this: (2*1.6*10^-19*9*10^9*λ)/(.012)=(4π^2*1.67*10^-27*.012)/(1.30*10^6)^2 I got 1.95056*10^-33 nC/m but that seems to be wrong, anywhere I went wrong?

Ah, okay I see what you mean. I finally got it, thanks!

Homework Statement A proton orbits a long charged wire, making 1.30*10^6 revolutions per second. The radius of the orbit is 1.20cm. What is the wire's linear charge density? Homework Equations - q E = m w^2 r - 9*10^9 [2 λ /r] q = m w^2 r The Attempt at a Solution λ = linear...