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1. 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...
2. 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...
3. 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...
4. 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...
5. 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...
6. 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...
7. Would it harm my later in life to take calculus 1 online?

So this summer I was planning to take calc 1 at a school, but they cancelled it. Very aggravating. But I can take the course online somewhere, so will it hurt me later on to take it online? Also does anyone know of good accredited places that I could take calc 1? I was thinking BYU or I don't...
8. Derive average rate of change formula of cos

Q. Use the addition formula cos(u+v) = cos(u)cos(v) - sin(u)sin(v) to derive the following identity for the average rate of change of the cosine function: (cos(x + h) - cos x) / h = cos x ((cos h - 1) / h) - sin x ((sin h) / h) A. cos(x+h) = cosxcosh - sinxsinh subtitute this to...
9. Website with cheap used physics/math texts?

Hello I was just wondering I anyone knew of a good site to get old physics and math texts, at whatever age from new to 70+ years, possible a site that conects university libraries wishing to clean out texts. Also not just into calc and intro physics but assortments of intermediate to advanced...
10. HW question in Trig relations

Q If cos(alpha)=-sqrt3/5 and alpha is in the third quadrant, find exact values for sin(alpha) and tan(alpha). A. Well what I did was use the pythagorean theorem so (-sqrt3)^2+(opposite)^2=5^2. then in the end I got sqrt22 for opposite so then sin(alpha)=sqrt22/5 and tan alpha =sqrt22/-sqrt3...
11. Schools Does one need Physics with calc or can one just take college physics

At the university in my town they offer summer physics courses. Although only college physics and not physics with calculus. I have the option to take this and do the first half of physics. Will only taking physics without calc hinder my abilities for later classes in physics? The prerequisites...
12. What physics and math needed to start some research in astronomy

Alright well I am in high school so my resources are limited as far as sophisticated telescope. Although I can ask around via email to see if there is any way to find time on more sophisticated technology. As far as what levels of math and physics I am at next fall I will be taking fundamentals...
13. Transformations math help

Q Applying a horizontal stretch by a factor of k (where k is a constant such that k>1) to f(x)=lnx is equivalent to applying what shift to f? Give both the amount and direction of the shift. my A so i came to the conclusion that the answers must have to do with the laws of logs. and from...
14. Exhaustion methods

Well if anyone has read Apostol's vol 1. Can anyone explain in the beginingthe sum of the areas of the outer rectangles is (b^3/n^3)(k^2) or (b^3/n^3)(1^2+2^2+3^2…+n^2) And the area of the inner rectangles and (b^3/n^3)(1^2+2^2+3^2…+(n-1)^2) What I would like to know is why does the value of...
15. Proof rule

Hello I'm learning about proofs and in my book there's a sect. On mathematical induction. And I'm trying understand why this makes it true for all values. 1+3+5...2n-1=n^2 Suppose that the formula is known to be true for n=1, and suppose that as a result of assuming that it is true for n=k...
16. Formula? Simple just a check of my answer.

Q. Consider the exponential function Q=r*s^t. Letting q= ln(Q), show that q is a linear function of t by writing it in the form q=b+mt. State the values of b and m. Ans. q=(q0-(ln(r*S^t1)-ln(r*s^t2)*t0))-(ln(r*S^t1)-ln(r*s^t2)T0)*t Im pretty sure its right my main question is about the...
17. How to get along fast in math. while retaining all the info

Hello my name is Andrew I'm also in high school a sophmore. I got sort of behind my 8th and 9th grade years in math currently to catch up I'm at the university in my town. I've always loved math, but its taking time to get through all the basics for calc and so on. I mainly want to get to some...