# Recent content by andrewkg

1. ### Can you skip some material in a physics book?

Thank you both! I will definitely look into that book as well.
2. ### Can you skip some material in a physics book?

Really? No one has any suggestions? It seems pretty simple. Do you need to read the thermodynamics and wave & light sections to understand the electromagnetism section?
3. ### Can you skip some material in a physics book?

There is a book that I would like to read "Electronics for scientists" but it has physics as a prerequisite and I will not be able to take a physics course till next year (I would just take the one at my high school but the teacher is not very good and I would rather start with a calculus based...
4. ### Possible application of Genetic Algorithms

Well I have about 16 months. During the school year I can put in 5 hours & on weekend more. When you say these algorithms is there another type that you know of that could be more effective for this project? So do you think there is no way they could be effectively used. I have a whole...
5. ### Possible application of Genetic Algorithms

Ok so I have a view ideas in mind for a project I was planning on doing involving genetic algorithms for my high school science fair class. I do have 3 mentors one a mathematician, a computer scientist who focuses on GAs, and a physicist who focuses on nano structures. here where I live, but...
6. ### Vectors in a 3D plane

Never mind I misread something earlier. Making my question very illogical. Sorry. Thanks though.
7. ### Vectors in a 3D plane

OK so I am a bit confused. I am doing multiplication of vectors. I am a bit confused about the angles between two vectors. Lets say a(vect)=(3.0)i-(4.0)j; b(vect)=(2.0)j+(3.0)k in unit vector notation. Or generally how are angles between two vectors in 3d defined. Not just in terms of the dot...
8. ### Good online or physical location junk/scrap electronics,science

well I am going to LA later this month. So that works perfectly. Can you give me a list please. Thanks!
9. ### Good online or physical location junk/scrap electronics,science

Hello. Im looking for a good scrap or junk yard that has good supplies for low prices, mainly electronics, science, aviation, military. Just a place that sells decent quality stuff that can be used for science related stuff. Like old radars, satellite dishes, monitors, medical electronics...
10. ### Help finding solutions to sqrt(a+sqrt(-b))+sqrt(a-sqrt(-b))=4 and

In the first I tried simplifying and got a=8, but sqrt(-b) always cancelled out. For the second I tried substituting for x or x^2 and it always cancelled all the other values out.
11. ### Help finding solutions to sqrt(a+sqrt(-b))+sqrt(a-sqrt(-b))=4 and

Homework Statement Q A Find all integers which satisfy sqrt(a+sqrt(-b))+sqrt(a-sqrt(-b))=4 Q B Find all the roots for the quadratic equation x^2-x-(2+4+6+...+2014) Homework Equations --- The Attempt at a Solution Well with both I keep coming up with 0=0 and cannot seem to get...
12. ### Electronics parts complete assortment

Well I have no where else to look. I have tried various websites stores etc. I have looked into various sources sites extensively. And so far everything is just a source of aggravation. I can find all of the various parts but its over priced and takes to much searching to find parts. I just...
13. ### Law Of Sines, deducing addition formula

Well this is an old post, but its similar to mine. In the question it says even if b or c is obtuse. And the altitude method will not work. Does anyone know or a secondary method. Or a way to show it works for B or C being obtuse.
14. ### Would it harm my later in life to take calculus 1 online?

Ok well I think I'm going to do it online, quick question though so do you guys think that 5 months is enough time to learn calc 1 and 2, I will have 5 months online for Independent study and as far as asking question I have a good family friend who is a math professor that offered to answer any...
15. ### Would it harm my later in life to take calculus 1 online?

Well credit for transfer isn't really all that necessary because I'm just dual enrolled at the university and high school so they will allow me allowing me to take latter math courses and allow it as my prereq to calc 2 if I say I already took the class. And I will probably take them again in...