Science & Mathematics - 19 October 2007

Where can I learn any and everything about electric motors...magnetism that produces electricity, how to create electricity, and amplify the currents...I want to know any tricks I can learn on how to modify RC engines, electric motors, heck even gas enigines, anything and everything that is small, I wanna know how to make the small go as fast as possible, i have my porjects, this is something I've been wanting to do, so Where can I learn everything, where can I be taught? Thanks :)
If you have any questions, i don't plan on do anything to abuse my knowledge, just have fun with knowledge, I'm a student so makeing RC things go faster fly higher and what knot is cool, welll, you can ask me at www.forgetfull@yahoo.com
lol, o yeah(my friend created the account, I'm so busy studying that i usualy forgett how to spell my account, I had 10, all different names similar but completely different passwords...again, thanks for any help you can give :)

2007-10-19 15:13:22 · 2 answers · asked by Anonymous in Other - Science

i am given the vertex of parabola as V(3,-1), axis parrallel to y-axis and the line y= - 4x+7 is a tangent to the parabola

how to find the equation

in (x-h)^2 = (y-k) form

2007-10-19 15:11:31 · 2 answers · asked by Anonymous in Mathematics

Where can I learn any and everything about electric motors...magnetism that produces electricity, how to create electricity amplify the currents...I want to know any tricks I can learn on how to modify RC engines, electric gas, anything and everything that is small, I wanna know how to make the small go as fast as possible, i have my porjects, this is something I've been wanting to do, so Where can I learn everything, where can I be taught? Thanks :)
If you have any questions, i don't plan on do anything to abuse my knowledge, just have fun with knowledge, I'm a student so makeing RC things go faster fly higher and what knot is cool, welll, you can ask me at www.forgetfull@yahoo.com
lol, o yeah(my friend created the account, I'm so busy studying that i usualy forgett how to spell my account, I had 10, all different names similar but completely different passwords...agfain, thanks for any help you can give :)

2007-10-19 15:10:58 · 5 answers · asked by Anonymous in Engineering

1/x+1 + 2/x-1 = 3/x+1

2007-10-19 15:03:22 · 18 answers · asked by Anonymous in Mathematics

One night a few years ago, me and my brother and cousin and stepbrother, we were all outside in the backyard at night. Im guessing it was about 11 PM or so. And we're just sittin there and theres this big, tall grain-processing building. And we just see this seemingly small red light fly from the sky and go behind that building. I know that it wasnt an airplane because 1) i know what plane lights look like and 2) it flew down at an angle that'd be unusual for a plane and 3) we didnt hear any airplane and it was a quiet night. You'd know if it was a plane, on a quiet night, we would've heard it. It was just a single red light. It went behind the building and we didnt see it come back out.

2007-10-19 14:54:48 · 11 answers · asked by Anonymous in Astronomy & Space

Do they have chipmunks,squirls,deer, and lots more.

2007-10-19 14:53:27 · 8 answers · asked by The Grand Inquisitor 4 in Zoology

cant figure it out for an elasticity problem im trying to solve.

2007-10-19 14:52:10 · 3 answers · asked by sportzblock 1 in Mathematics

I was reading an article about Mzima Springs in Kenya where they talked about hippos and their behavior. I came upon a confusing fact about hippos that I seem to be having trouble finding more information about it: "A hippo calf allows the vigorous attentions of a Labeo, a member of the carp family. Abundant in Mzima, Labeo use their wide mouths to scrape algae, parasites, and dead skin from hippos’ hides. To solicit these welcome cleanings, hippos go to certain areas of the springs where the fish congregate and adopt a cleaning stance, stretching out their limbs to open the creases in their skin. Other fish specialize in cleaning different parts of the hippos’ bodies. Barbus, for example, cleans the cracks in the soles of the feet, and tiny Garra grazes inside wounds." So, is it true that hippos actually use certain types of fish to clean their bodies? Also, please take this question seriously.

2007-10-19 14:50:33 · 2 answers · asked by killerwhalesrule19 3 in Zoology

the golden ratio- the ancient greeks thought that the most pleasing shape for a rectangle was one for which the ratio of the length to the was 8 to 5, the golden ratio. if the length of a rectangular painting is 2 ft.longer than its width, then for what dimension would the length and width have the golden ratio?

2007-10-19 14:48:20 · 4 answers · asked by mormar 1 in Mathematics

Things to keep in mind:
1) Is gravity its own law distinct and non volitile compared to the S/W nuclear and electromagnetic? maybe?
2) The [S/W nuclear and electromagnetic] are they interelated while gravity is a force effective with the precense of mass only?
3) Elements and thier properties

2007-10-19 14:45:08 · 1 answers · asked by Gobi 4 in Physics

explain how these scientists use the microscope and what they hope to discover , prove or accomplish.

2007-10-19 14:43:33 · 7 answers · asked by ♥ rock~n~roll♥ 2 in Biology

Use the following equations to construt an equation for w that involves only the variables a and b.

xw = yt

x/a = b

a^3y = b

a^2 = tb .........your answers help me understand the concept. Thank you so much!

2007-10-19 14:42:32 · 4 answers · asked by Anonymous in Mathematics

this is sooo confusing me all u mathmaticians out their plz help me


Points a,b,c,and d lie on a line. in that order
if AB =3.4,AC-8, CD=2 WHAT IS BD?

2007-10-19 14:42:13 · 5 answers · asked by Anonymous in Mathematics

omg, seriously freaked out right now with the whole "THE WORLD'S GONNA END IN 2012!!!"
i've heard of the polar shift and it sound seriously scientifical and stuff or NYC is gonna get hit with a nuclear bomb and every1 within a so-and-so diamater is gonna die.... but is ANY of it true?

2007-10-19 14:41:58 · 22 answers · asked by Anonymous in Astronomy & Space

Why do we have to add reverse and forward primers to a sample of DNA before sending it to sequencing?

What is the process to prepare the primers? (make up your own numbers and examples if it makes it eaier to explain)

2007-10-19 14:34:36 · 3 answers · asked by swtfantasiez 2 in Biology

So the moon is roughly 1/20th of earth,
essentially making it a duel planet system..
is there any othe rplanets we have found with a system like Earths? (every other planet seems to have TINY satelites/moons)

2007-10-19 14:33:32 · 5 answers · asked by SwiftKill 4 in Astronomy & Space

Determine net ionic equations, if any, occuring when aqueous solutions of the following reactants are mixed.
Select "True" or "False" to indicate whether or not the stated reaction (or "no reaction") correctly corresponds to the expected observation in each case.


Sodium phosphate and potassium nitrate; No reaction occurs.

Magnesium chloride and sodium hydroxide; No reaction occurs.

Copper(II) sulfate and ammonium carbonate; No reaction occurs.

Sodium bromide and hydrochloric acid; Na+(aq) + Cl-(aq) --> NaCl(s)

Lead(II) nitrate and sodium chloride; No reaction occurs

2007-10-19 14:31:02 · 1 answers · asked by vivachappelle 2 in Chemistry

2007-10-19 14:30:47 · 2 answers · asked by swtfantasiez 2 in Biology

i cant figure it out for solving an elasticity problem, can anyone help me out?

2007-10-19 14:28:18 · 6 answers · asked by sportzblock 1 in Mathematics

2007-10-19 14:27:58 · 9 answers · asked by Anonymous in Astronomy & Space

2007-10-19 14:23:17 · 13 answers · asked by yahooligan! 3 in Astronomy & Space

2007-10-19 14:22:56 · 5 answers · asked by MidnightStarss 2 in Biology

2007-10-19 14:21:59 · 3 answers · asked by KALLIOPI P 2 in Weather

Can someone give me the simplest, yet MOST explanatory reason how to solve these equations....

1. 6-3(6-3)

I know the Order of Operations--but I'm confused. Once I get to 6-3(3)........then what? Please explain this thoroughly. I know the answer is 9, but how?

2. 9 - 3(-3 -1)

Once I get to 9-3 (-4).......what do I do? I should multiply but....what do I multiply first, ect.,? I know the answer is 21, but how???

Thanks!

2007-10-19 14:20:19 · 7 answers · asked by Leah C 1 in Mathematics

I know first is tounge, second is groping and home is penetration, but what's third?

2007-10-19 14:19:55 · 4 answers · asked by Anonymous in Physics

2007-10-19 14:19:06 · 10 answers · asked by Anonymous in Mathematics

or is this just all fiction?? If they did know , what is the secret and why wouldnt they let us know? please be serious, I need to know if aliens are out there and how we can locate them ?

2007-10-19 14:17:59 · 9 answers · asked by Anonymous in Astronomy & Space

I think that all of these are terrorist, but if one of them isn't please tell me.

Saudi Arabia
Syria
Iran
Jordan
Turkey

2007-10-19 14:16:32 · 5 answers · asked by Kittles 1 in Geography

You are in an empty room and you have a transparent glass of water. The glass is a right cylinder, and it looks like it's half full, but you're not sure. How can you accurately figure out whether the glass is half full, more than half full, or less than half full? You have no rulers or writing utensils.

2007-10-19 14:14:27 · 4 answers · asked by cuddleswthyou 1 in Physics

2007-10-19 14:13:33 · 6 answers · asked by Anonymous in Geography