Recent content by afrocod

All right, thank you to everyone who replied. I think I have enough different opinions to go on to make an informed decision. It really is a great community here, everyone is very helpful and generous with their time.

No money's not an issue. I just want to be sure before I buy because textbooks are often but not always dearer then the average book. I don't mind paying a lot of money for a great book that I'll keep coming back to over the years.

What do you think of "Linear Algebra Done Right" Sheldon Axler? Would that be a bit too much for my first look at the subject?

Some books are so nice, you just have to get the hardback though. But then again if it's just an intro, I know what you mean. Are you familiar with the Simmons texts? Just wondering is your recommendation based on that knowledge or are you naming a nice, easy, introductory book that you have...

All right this is good. Thank you for your input. Anyone else agree or disagree with the previous recommendations or have one of their own? Hopefully I can get some kind of consensus. Textbooks are so expensive, I need to be really sure before I buy.

Thank you sir, the reviews look good.

I know there are suggestions in previous threads and I've searched and read them. I'm currently working through "Calculus with Analytic Geometry" by George Simmons and I love it. I worked though Simmons' pre-calculus book before that. I learned more from Simmons' books in a few months than I...

Oh, I see. I really should have known that... I think I need some sleep. Thank you for your patience and very clear explanation.

(9.9 x 10^6) / 144 = Q(B) / 529 Q(B) = 36.37 x 10^6 It's definitely +12, there's a diagram that shows X between the two points. Sorry I forgot to mention. I thought your explanation was crystal clear so I'm really at a loss as to why this is yielding the wrong answer.

How do I find XB if I don't know B? F = q(B) / 4πε0(0.23)^2 = q(B) / 5.91637 With this I get a cancellation of q(B) and can't find it. Thanks for the formula, I have never seen it before.

Homework Statement Two point charges are situated at A and B a distance of 35cm apart in a vacuum. The charge A is a positive charge of 16 μC and the field strength at X, a distance of 12 cm from A, is zero. Calculate: (i) The field strength at X due to the charge at A. (I found this to be...

Ah, I see the solution now. It all seems so simple in retrospect. Thanks for all the help.

Isn't it always perpendicular to the surface though?

Perpendicular to the surface.

That doesn't seem to work either because W would be √2 times the other length's and not one equal to W and the other √2W.