Recent content by J Goodrich

There is something that I do not understand completely with regards to charged, isolated conductors. Gauss' law implies the following: "If an excess charge is placed on an isolated conductor, that amount of charge will move entirely to the surface of the conductor. None of the excess...

Let's suppose that I am the Captain at a space dock sitting in interstellar space. My crew decides to go on a trip in our ship, so they board and set off at .9c. t = t0 / sqrt( 1 - v^2/c^2 ), t0 = 1, v = .9c, therefore t = 1 / sqrt( .19 ) = 2.3 (approximately) So as they speed off, 1...

There is no such rod of negligible weight though, which I believe is important, because I don't believe it would be impossible to rotate any physically existent rod to behave in such a manner where its outer points would be rotating above c.

Could you tell us why you did poorly? Did you not understand the concepts? Did you not remember how to apply the equations? Were the mathematics difficult?

Are you talking about SAT Subject Tests or just classes taken in high school? Either way, it depends on the university and program. As a rule of thumb, more selective schools would probably like to see at least a year of calculus, physics, and chemistry, but this is just a rule of thumb. I...

How does one compute \int r^{3}\:\sqrt{r^{2}+1}\:dr Does this involve double u sub or trig sub? Thanks in advance, Justin

What are some good, preferably free, programs that one can use to graph 3D equations and possibly perform integration/differentiation techniques to?

So \sqrt[3]{1 + \sqrt{28/27}} + \sqrt[3]{1 - \sqrt{28/27}} has no simpler form?

is there any expansion of (a+b)^(1/3) + (a-b)^(1/3) or any other manipulation that could be done to rewrite this expression, perhaps under one radical or in some other way rather than the addition of two radicals?

What size do you recommend that I make my partitions?

Does anyone have any experience with this on their computers? I have minimal experience with Linux, but since I'm going to school in a week to begin a degree in electrical engineering, I thought having a Linux OS on my system would be a good move. My HD is 455 gigabytes right now...I was...

To be honest with you, I don't think it matters very much at all if you're going to master in it.

Can anyone give me some suggestions of some essentials, calc or non-calc, that I should review and be comfortable with in calc 3? I know trig sub is supposedly important, and I'm assuming other basic derivative/integration techniques will be coming up a lot too...a lot of topics are bound...

Hey guys, I'm in the market to get a laptop. I don't want to spend too much money, but I want to get a decent quality laptop that I'll be able to play a few games on without any trouble. I'm going to be entering college with a double degree in electrical engineering and physics too, so it has...

Ah, that makes sense. Thanks!