Science & Mathematics - 25 November 2006

2006-11-25 15:14:12 · 1 answers · asked by sns.anil kumar d 1 in Physics

2006-11-25 15:13:57 · 2 answers · asked by Starmaster 2 in Chemistry

I heard that a British spy was recently exposed (purposely) to the radioactive Polonium 210. I know that this is radioactive and it causes
cancer, along with other physical problems. Is Polonium 210 a radioactive element or isotope?

2006-11-25 15:07:35 · 6 answers · asked by Anonymous in Chemistry

importance of solutions

2006-11-25 15:06:12 · 3 answers · asked by ashley j 1 in Chemistry

where can i get info bout 3-phase generators? and someone plz explain it, so i can get more info as much as i can.. thanks

note:
post the sites for me plz

2006-11-25 15:05:39 · 3 answers · asked by devil 1 1 in Engineering

biology

2006-11-25 15:03:09 · 3 answers · asked by Anonymous in Mathematics

I have a question already up...I didn't mean for people to think they should do it for me, I'm very confused about how to use the Gaussian method on this one. I would just like someone to help me point out how to begin doing this problem. The problem is labeled something like Teacher defines polynomials by T0, T1, T2...

2006-11-25 15:00:51 · 2 answers · asked by Stephanie 2 in Mathematics

If the perimeter of a rectangle is 22 ft. and the width is 8 ft., find its length.

2006-11-25 14:59:08 · 12 answers · asked by Anonymous in Mathematics

Compare the graph of h(x) to the graph of f(x). Explain the transformation in words h(x = f (x+2) -3.

2006-11-25 14:58:56 · 3 answers · asked by rlvitte 1 in Mathematics

2006-11-25 14:57:33 · 12 answers · asked by AFizz 1 in Zoology

I would like it if you could use it with elastic and inelastic collisions. When is momentum lost or gained in either collision, when is energy gained in either collision. What IS conservation of momentum and what IS conservation of energy

2006-11-25 14:54:31 · 5 answers · asked by Kay 1 in Physics

I realize that the compound As2O3 is an acidic oxide, but I am not quite sure what sort of balanced equation to use to prove its acidity. I am planning on using As2O3 + H2O, but I can't remember how to figure out exactly what this yields. I assumed that it was H3AsO4, but I couldn't balance the equation with this, so it seems as though it might yield H3AsO3. I should know how to formulate my balanced equation properly, but apparently I have forgotten what steps to take.

Am I using the right reactants? If so, what should my product be?

Thanks for your help. =)

2006-11-25 14:50:20 · 4 answers · asked by Anonymous in Chemistry

The Pleides Star system, ever heard of it? Some say Aliens came from that area. What do you think? I don't believe that, but I love astronomy. What about you?

2006-11-25 14:50:09 · 7 answers · asked by lorenzo 1 in Astronomy & Space

Consider the curve y=f(x), where f(x)= (x^2-1)/(x+2). Prove using the algebraic method, that f(x)>=a or f(x)<=b, where a and b are exact values to be determined.

Can you show me what is the so called algebraic method?

2006-11-25 14:42:21 · 7 answers · asked by Anonymous in Mathematics

In about 4-5 billion years, the Sun will run out of hydrogen fuel and will start expanding and turning into a Red Giant. Temperatures on Earth will reach thousands of degrees, the sunlight will become blindingly bright, our oceans and atmosphere will evaporate, we might get swallowed up by this Red Giant... pretty much, if we stay on Earth, we're doomed. Do you think humankind will be around to see that happen? If so, what do you think we will do about it?

Ahhh, so depressing...

2006-11-25 14:39:08 · 21 answers · asked by kiki 1 in Astronomy & Space

2006-11-25 14:36:55 · 3 answers · asked by anrtech 1 in Engineering

Hi, i know this will be very wierd question and no one will be able to answer accurately.

Based on the theory of relativity, as the speed of object increase distance in 3-D decreases (warping of distance occurs).. If i travel with the speed of light -- time will come to halt...My question is what will happen to space ? space will not exists, it will be completely warped, it cannot exists even as a point, (not the ideal definition of point being hyphothetical unit which occupy 0 space and is indivisible)..
Moreover light -- which travel with the speed of light-- how space will be defined for it -- it won't exist according to this theory...

2006-11-25 14:33:59 · 7 answers · asked by Anonymous in Astronomy & Space

2006-11-25 14:32:41 · 3 answers · asked by emmy_dm 1 in Engineering

Do you think there are aliens in outer space?!?
And Why??

2006-11-25 14:29:41 · 18 answers · asked by dragon loverr 2 in Astronomy & Space

Say you can not be harmed....Both would be a site to behold....

2006-11-25 14:28:47 · 3 answers · asked by Anonymous in Astronomy & Space

.

2006-11-25 14:28:45 · 7 answers · asked by Cool2Fool 1 in Biology

2006-11-25 14:27:49 · 12 answers · asked by omffdc 1 in Biology

like what is it and how does it become created??

2006-11-25 14:26:21 · 10 answers · asked by Sheeeep! 3 in Astronomy & Space

Let's assume that an object is orbitting a planet of 6 x 10 (21) tonnes, and the eccentricity of the orbit is 0. Would the objects orbit ever degrade? Assuming that the planet didn't have an atmosphere.

2006-11-25 14:21:35 · 6 answers · asked by Gavin S 3 in Astronomy & Space

Can u give me a link so I can have real information?

2006-11-25 14:17:39 · 3 answers · asked by Anonymous in Astronomy & Space

Strictly regarding electrical and mechanical engineering

2006-11-25 14:15:00 · 5 answers · asked by morpheus2485 1 in Engineering

The system includes all that we wish to study.
A spontaneous reaction requires that the heat of the universe decrease.
Spontaneous reactions must be fast.
A closed system disallows the transfer of heat to the surroundings.
Thermodynamics describes the direction in which a reaction will proceed.

2006-11-25 14:14:46 · 8 answers · asked by confused 1 in Chemistry

2006-11-25 14:14:33 · 8 answers · asked by Samlovesjesea 1 in Physics

2006-11-25 14:10:59 · 12 answers · asked by staticXXX 1 in Medicine

Tea bags contain herbal medicines specifically the leaves. These leaves contain caffeine. After doing an experiment on the extraction of caffeine using chloroform, the result showed 0% recovery of caffeine. What could be the possible reason for this? We followed the right procedures and were very meticulous in doing the experiment. The tea bags used were Tsaang Gubat Tea. Does this mean that Tsaang Gubat doesn't contain caffeine?

Please I need your answers and explanations. Thanks!

2006-11-25 14:08:24 · 3 answers · asked by zira 2 in Botany