Physics 2: For Scientist and Engineers

I need some serious help with understanding some stuff this semester. I'm in chapter 21 of Physics for Scientist and Engineers 3rd Ed, by Douglas C. Giancoli.

Chapter 21 starts out really easy as it is the intro to electric charge and electric field. It goes through the basic of "Hey yo this be a conductor, it conducts eletrictshizzle and this be a insolator it like, don't put up with nothen"

Well It gets insanely hard in section 21- 7 Electric Field Calculations for Continous Charge Distributions

Out of no where it just dumps a ton of calc 2 and calc 3 into coulomb's law and rapes the hell out of it. ;_; I just don't get it.

But I have to get this to go further with my major. I'm in comp eng now, and I'm thinking of changing to eletrical, so I MUST get this.

If anyone can help, with links, emailed notes, something, I would really apriciate it.

This is really important to my future that I get this ;_;

Try forming a study group with some other half way decent students and see if your collective minds can figure it out. See if you can get some one on one time with the instructor or T.A.

?

Quote:

---

Originally Posted by JefmcC

Try forming a study group with some other half way decent students and see if your collective minds can figure it out. See if you can get some one on one time with the instructor or T.A.

?

---

The study group thing isn't an option right now. This is my first semester with this group so I don't know them well enough to just do that willy nilly. But I will keep my ears open for word on one.

I think Ill email the instructor and my calc teachers

I wish I could help IP, but I havent gotten that far yet. I am currently getting slammed by some Chem II so I know you're pain. Admittedly Physics is way tougher though.

Is there no science lab or Math Lab to got to for help. Every University I've been to has volunteers that work in these. I havent used mine yet this semester,but its nice to know its there.

i'm a comp engineer and i have no clue about that stuff. I might have done it at one point, i don't remember. But just so you know, all those physics classes are useless, it's just to make the major hard and weed people out.

Quote:

---

Originally Posted by stormy

i'm a comp engineer and i have no clue about that stuff. I might have done it at one point, i don't remember. But just so you know, all those physics classes are useless, it's just to make the major hard and weed people out.

---

Well I'm thinking of changing to eletrical eng. I plan on learning everything about electronics, from vacuum tubes and up
.

I have the Sixth Editon of that book.

I got an A- in the class. :)

Um, get used to integrating stuff. Because it's all you will ever do.

You'll never learn the stuff over a message board, though, so try to find some legitimate help on campus if you're really having trouble. Good luck.

As far as EE and CoE go, if you like the physics and electonics side of computers more then go with electrical engineering. If you like programming and stuff like that go with comp engineering. Judging simply from the fact that you mentioned vacuum tubes, electrical is probably better for you.

Just out of curiousity, I was wondering what mechanical engineering entails these days. What kind of jobs do ME's get in the current workforce? Sorry IP, I can't help you out with physics, the mere mention of what your working on leaves me perplexed.

Quote:

---

Originally Posted by OmniGear

I have the Sixth Editon of that book.

I got an A- in the class. :)

Um, get used to integrating stuff. Because it's all you will ever do.

You'll never learn the stuff over a message board, though, so try to find some legitimate help on campus if you're really having trouble. Good luck.

As far as EE and CoE go, if you like the physics and electonics side of computers more then go with electrical engineering. If you like programming and stuff like that go with comp engineering. Judging simply from the fact that you mentioned vacuum tubes, electrical is probably better for you.

---

It isn't really the intergrating thing that gets me. I can do nontrig calc all day. I only get screwed up when they make me use some trick from so and so day long ago to simplefy the problem so I can fenish working it.

I hate those problems, teachers look at you like you are the village idoit for not remembering whatever stupid thing.

Whats really getting me on this is they just do shit. They don't do the math for everything, and assume I know this and that. Hell, today, I got him to talk about it and I found out you can only intergrate things related to x/y plains. and that is why they pluged in something to replace the dirvative of the charge, because you can't take the dirative of things, only x/y stuff. To explain it better, untill today I did not know that I can't take the intergal of a cat, or a bus, or a ball of dirt.

Quote:

---

Originally Posted by IronPlant

I need some serious help with understanding some stuff this semester. I'm in chapter 21 of Physics for Scientist and Engineers 3rd Ed, by Douglas C. Giancoli.

Chapter 21 starts out really easy as it is the intro to electric charge and electric field. It goes through the basic of "Hey yo this be a conductor, it conducts eletrictshizzle and this be a insolator it like, don't put up with nothen"

Well It gets insanely hard in section 21- 7 Electric Field Calculations for Continous Charge Distributions

Out of no where it just dumps a ton of calc 2 and calc 3 into coulomb's law and rapes the hell out of it. ;_; I just don't get it.

But I have to get this to go further with my major. I'm in comp eng now, and I'm thinking of changing to eletrical, so I MUST get this.

If anyone can help, with links, emailed notes, something, I would really apriciate it.

This is really important to my future that I get this ;_;

---

http://www.scholar.google.com/