Science & Mathematics - 13 July 2007

2007-07-13 05:26:12 · 1 answers · asked by gaurav c 1 in Physics

Factor the expression: 3x2 + 7x + 2
The answer is: (x+2) (3x+1)

How do you get this?

2007-07-13 05:21:52 · 7 answers · asked by Anonymous in Mathematics

It is brown, about an inch long, segmented and moves if u tuch it. It is possibly a pupa, but of what kind of insect. I found 2 of them.

2007-07-13 05:19:17 · 4 answers · asked by Stan 2 in Biology

2007-07-13 05:17:18 · 2 answers · asked by Dan 1 in Engineering

Exactly.

2007-07-13 05:14:05 · 16 answers · asked by Anonymous in Astronomy & Space

x^2-5x=12

x^2-8x+15

2007-07-13 05:13:39 · 4 answers · asked by drama kween 1 in Mathematics

2007-07-13 05:07:15 · 9 answers · asked by Anonymous in Mathematics

I know nothing at all about tanning. I want to know if there are any chemcials used in the tanning industries that's innocuous inherently, but may be dangerous in large quantities? (In leather tanneries)

For instnace, sleeping pills may be inerently harmless, but they're harmful if you take the entire bottle. Something on those lines?

Help, somebody!

2007-07-13 05:06:28 · 3 answers · asked by debergeracvat 2 in Chemistry

cooler with the gold side facing the sun or with the silver side facing the sun?

2007-07-13 05:03:51 · 12 answers · asked by Anonymous in Physics

First of all, let me say that I already know the answer to this one. I'm asking it just to generate some thought and discussion.

Here's the scenario:

The captain of Spaceship "A" watches as Spaceship "B" flies past at a (constant) speed of 1/2 c. According to the theory of relativity, moving clocks tick slowly; this means the time on Spaceship "B" is passing only 87% as fast as the time on Spaceship "A".

But now look at it from the point of view of the other captain. According to him, his own Spaceship (B) is standing still, while Spaceship "A" is moving at 1/2 c. So Captain "B" believes that Spaceship "A" is the one with the slow clock.

Can each "moving" clock actually be slower than the other ("stationary") clock? If not, are they both "really" ticking at the same speed? If not, which one is "really" slower?

This question is a little like the famous "Twin Paradox," except I've set this one up so that nobody accelerates and nobody changes reference frames.

2007-07-13 05:02:34 · 5 answers · asked by RickB 7 in Physics

It's like my brain shut down when it came to math when I was 12. It was always a struggle before then, and nearly impossible afterwards. I just barely got by with the help of a lot of tutors. Anyone else mathematically retarded?

2007-07-13 05:00:46 · 10 answers · asked by Anonymous in Mathematics

express periodic impulse delta T = sigma of (delta (t-nT) for n from - to + infinity in terms of exponential Fourier series Cn using exponential Fourier series.

2007-07-13 04:59:50 · 2 answers · asked by 037 G 6 in Mathematics

i.e. - low grade decomposable polymers, cellulose, something from an abundant shrub or herb (papyrus)

2007-07-13 04:57:07 · 7 answers · asked by 15fsg546rge1rrheljh45hjr90459ty3 3 in Engineering

I learned about the Glen rose formation on the internet and I want to go find fossils there but I called Dinosaur valley state park and they didn't know. So I want to know the address (like what road) and how to get there.

2007-07-13 04:56:59 · 5 answers · asked by Anonymous in Earth Sciences & Geology

International ANSWER is an arm of the STALINIST Workers World Party, Code Pink was founded by two well-known communists that helped the sandinistas in the 80's. The United for Peace coalition, which includes Socialist Action and the Socialist Party USA, is also led by Leslie Cagan, who has a long history of activism with the American Communist Party.

Haven't we had enough of the LIES of the left?

2007-07-13 04:56:15 · 17 answers · asked by fourthy27 2 in Parapsychology

different pH value of the fruit juice will affect the setting of the jelly. What make this occur?

2007-07-13 04:53:59 · 3 answers · asked by stitch 1 in Chemistry

http://answers.yahoo.com/question/index?qid=20070710111753AAZYnw5

2007-07-13 04:49:47 · 22 answers · asked by Alexander 6 in Mathematics

The volume of a larger prism is 168cubic cm. if the prisms are similar with linear ratio of 3:2 what is the volume of the smaller prism

2007-07-13 04:47:25 · 2 answers · asked by Anonymous in Mathematics

2007-07-13 04:46:18 · 7 answers · asked by Anonymous in Chemistry

Finally, the last one that keeps on stumpin' me...

5w^5-1080w^2

2007-07-13 04:44:50 · 4 answers · asked by Anonymous in Mathematics

X^2-9X-36

2007-07-13 04:43:39 · 3 answers · asked by drama kween 1 in Mathematics

Everytime i wanna view a website, a thing pops up that says " operation absorbed" and then the window closes. What the hell is it? and how do i stop it??

2007-07-13 04:42:59 · 4 answers · asked by Jpegg 4 in Medicine

What is the force of electrostatic attraction
beween the plates?

2007-07-13 04:42:02 · 2 answers · asked by Alexander 6 in Physics

Which is heavier the earth or the moon?

2007-07-13 04:39:53 · 10 answers · asked by Mr. Knickerbocker 3 in Astronomy & Space

A star before it implodes is a ball of hot gas,
its entropy is huge. After implosion all we have
is mass, angular momentum, and electiric charge.

But according to the 2nd law of
thermodynamics entropy cannot decrease.

2007-07-13 04:38:01 · 4 answers · asked by Alexander 6 in Physics

I'll be taking Intro to Statistics next semester but math is easily my worst subject but this course is required for my major. Is statisctics harder than algebra? Any tips on what I should get for this class as far as calculators & other tools I might need? Thanks for any help!

2007-07-13 04:37:22 · 7 answers · asked by Ashley 4 in Mathematics

find the derivative of

y = ((sin x)^2)/((1+cos x)^2)

2007-07-13 04:35:55 · 4 answers · asked by salmonella_jr 3 in Mathematics

2007-07-13 04:34:46 · 3 answers · asked by Anonymous in Mathematics

Let of ∑an when n goes 1 to infinity and ∑bn when n goes from 1 to infinity be convergent series with positive terms. Which of these series MUST converge? ∑(an + bn)? ∑(anbn)? ∑(an / bn)? or all of them?

2007-07-13 04:29:26 · 3 answers · asked by Anonymous in Mathematics

This is an assignment I got. I don't understand it at all. What questions should I ask my professor to clarify in order to sound intelligent when asking? Thanks...

1. Using deductive logic, explain how the following correct answers link to the corresponding correct concept or phrase:
NOTE: Inside parenthetical is not the primary answer but secondary which qualified as correct.

A: 1, 8, 6, 2, 12, 3, 10, 11, 5, 9, 4(7), 7(4)

C: 11, 9(3), 4, 12, 1, 6, 2, 10, 8, 7, 3(9), 5

E: 8, 2, 11, 10, 3, 12, 5, 4, 9, 7, 6, 1

2. As in previous exercises, present your defense using the following deductive-logic format:
Mathematics - Objective
a. Objectivity is analysis based on hard, observable facts.
b. Mathematics is the science studying the exact relationships between quantities and magnitudes.
c. Therefore, Mathematics is an objective pursuit.
3. Complete one of the matching exercises (A, C, or E) or all three and get the Best Yahoo Answers

2007-07-13 04:28:46 · 2 answers · asked by EagleEye1 2 in Mathematics