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1. Archived Quick circuit help/confirmation

Homework Statement This should be a really easy circuit, but I need to see if I have it done right. 1V source, 1A source and a 1 Ohm resistor in parallel (forgot to write the 1 Ohm resistor on the image.) Find the power of each element. http://img403.imageshack.us/f/circuit1.jpg/...
2. Kirchhoff's Rules

Homework Statement Sorry for edit, accidentally posted. Circuit is show in my attachment. I have 3 loops with three unknown currents. 8 Ohms of resistance down the left side. 6 Ohms of resistance and a 4V battery down the center. 4 Ohms of resistance and a 12V battery down the right side. I...
3. 150th Anniversary of the Origin of Species

http://www.youtube.com/watch?v=oM0oBuhTLRI[/youtube] http://www.youtube.com/watch?v=oM0oBuhTLRI" As some of you may be aware, the 150th anniversary of Charles Darwin’s Origin of Species is later this month, the 24th to be precise. In one week from today, a special abridged edition of the book...
4. Curvature, More of a cross product question really.

I've been using various methods of finding curvature, and using the forumla K=\frac{||\vec{r}'X \vec{r}''||}{||\vec{r}'||^3} I took the cross product of my two vectors and came up with (just assume this is correct, if my question isn't answered i'll post all related work)...
5. Air Cooler/Conditioner Question

So, here’s the situation. My roommate and I live on the third floor of our apartment complex. As you walk into the building and begin to climb the stairs to the third floor you would notice a tremendous increase in temperature regardless of the weather. We have air conditioning but its not...
6. Schools 'University' of Phoenix?

What are your collective thoughts about the “University of Phoenix”? My brother recently enrolled and is set to start classes on April 21st. From what I understand they have an online program called Axia and would only required to meet on campus on the first and last days of each semester...
7. Improper Integral

Improper Integral [Solved] Homework Statement \int_{0}^{\infty} (x-1)e^{-x}dx Homework Equations Integration by Parts Improper Integrals The Attempt at a Solution \lim_{R\rightarrow \infty} \int_0^R~xe^{-x}-e^{-x}dx Let u = x du = dx Let dv = e^-x...
8. Center of a Sphere in R^3

Center of a Sphere in R^3 I need to find the center and radius of a sphere given the equation: x^2 - 4x + y^2 + z^2 = 0 I would like to hope it would be as easy as just adding 4x to both sides, but having a variable as the radius probably isn’t correct. On the other hand, I...
9. Quotient rule problem.

Homework Statement In exercises 7-12, use the Quotient Rule to differentiate the function. 9) h(x) = \frac {\sqrt{x}}{x^3+1} Homework Equations Quotient Rule The Attempt at a Solution I'm trying to figure out basic calculus over the summer in preparation for class...
10. Course outline for self study

Greetings everyone. I’m interested in spending some of my free time this summer trying to teach myself Calculus in preparation for college this fall. I spent a great deal of time searching for used textbooks on amazon.com and decided to go with “Calculus” 7th edition by Larson Hostetler and...