Science & Mathematics - 4 October 2006

P0 = exp(-x/sqrt(2))
P1 = x*exp(-x/sqrt(2))
P2 = (x^2-1)*exp(-x/sqrt(2))

L^2 (-inf,inf)

2006-10-04 15:12:23 · 3 answers · asked by Jeff S 2 in Mathematics

true or false

2006-10-04 15:11:12 · 6 answers · asked by rabiamoghul 1 in Chemistry

Some corn seed imported from china lost germination after three months of import. I suspect it was treated with fura thiocarbamate.

2006-10-04 15:10:08 · 2 answers · asked by Dr Yousuf 1 in Biology

Whats the equation?

2006-10-04 15:07:40 · 2 answers · asked by tripp 1 in Physics

2006-10-04 15:05:12 · 5 answers · asked by taoster 2 in Other - Science

On the date mentioned above, an Asteroid named Apophis (Pronounced Apothis) will be paying us a visit. It will come VERY close to Earth (so close that it will dip BELOW our communication satelites) but, according to scientists' calculations, will miss us...barely. But here's the catch, it'll be back 7 years later, Sunday, April 13th 2036, and depending on how Earth's gravity affects it on it's first visit, it could hit us. What do you think of this horrifying event? I would like to discuss it over e-mail with anyone would care to do so.

2006-10-04 15:03:21 · 27 answers · asked by titanictrainsboats 2 in Astronomy & Space

(as atomic number increases)

2006-10-04 15:02:39 · 4 answers · asked by pnoiz1 2 in Chemistry

2006-10-04 15:02:06 · 4 answers · asked by soulgirl76 4 in Astronomy & Space

If so when, and where?

2006-10-04 15:01:08 · 9 answers · asked by lklk l 1 in Astronomy & Space

What are the chances you think that a earthquake will trigger a Tsunami on the Gulf of Mexico?

2006-10-04 15:00:43 · 6 answers · asked by Justin 6 in Weather

I formed Magnesium oxide from magnesium metal. Here is the following data:
1) Mass of crucible and cover= 32.032g
2) Mass of crucible, cover and magnesium= 32.346g
3) Mass of crucible, cover and oxide after 1st heating= 32.556g
4) Mass of crucible, cover and oxide after 2nd heating= 32.559g

Can anyone tell me how to find the following:
1) Mass of magnesium metal
2) mass of magnesium oxide
3) Mass of oxygen in the magnesium oxid
4) Moles of magnesium in the sample
5) Moles of oxygen in the sample
6)experimental ration of mol Mg to one mol 0 (decimal form)

2006-10-04 14:56:59 · 2 answers · asked by Anonymous in Chemistry

2006-10-04 14:56:07 · 6 answers · asked by piinkpolkadots 1 in Mathematics

help please!!

2006-10-04 14:56:06 · 6 answers · asked by D1 2 in Mathematics

2006-10-04 14:55:56 · 2 answers · asked by Anonymous in Biology

What percent of the brain did einstein use? I've always wondered

2006-10-04 14:55:18 · 5 answers · asked by LITTLE STAR 1 in Other - Science

It has to be in a question form. Heres a example: "will changing the water color of a plant affect the color its pedals will be?"
It has to be something more challenging. =)

2006-10-04 14:54:55 · 4 answers · asked by felix milea 1 in Other - Science

a substance that cannot be broken down to simpler substances is an compound.

2006-10-04 14:54:03 · 12 answers · asked by omer 1 in Chemistry

2006-10-04 14:52:46 · 3 answers · asked by Anonymous in Chemistry

when solid ice melts to become a liquid has undergone a chemical change

2006-10-04 14:52:10 · 7 answers · asked by omer 1 in Chemistry

i just asked myself right now that question while i was looking at the periodic table.

2006-10-04 14:50:53 · 3 answers · asked by poet356 1 in Chemistry

2006-10-04 14:50:29 · 19 answers · asked by Yetti 2 in Biology

the color of a substance is an example of physical property

2006-10-04 14:47:02 · 12 answers · asked by omer 1 in Chemistry

2006-10-04 14:45:41 · 4 answers · asked by piinkpolkadots 1 in Mathematics

Does that mean I have a tuberculosis? Is it treateble? May it be the reason of my cough and weariness? How often can I have x-ray in a year? X-ray is bad for the body, isn't it? ( I mean radation )

2006-10-04 14:45:34 · 4 answers · asked by Anonymous in Medicine

dont know or forgot to find sales tax

2006-10-04 14:44:47 · 9 answers · asked by Anonymous in Mathematics

the zero point on the kelvin temperature scale is called absolute zero.

2006-10-04 14:43:50 · 14 answers · asked by omer 1 in Chemistry

I don't mean what is it the camshaft timing variable, I am asking what is the math formula to figure out the exact timing of it.

2006-10-04 14:42:43 · 1 answers · asked by ? 4 in Engineering

the si unit if energy is the 0 C

2006-10-04 14:41:56 · 3 answers · asked by omer 1 in Chemistry

well let me explain. the dinosaurs were the dominant species awhile ago. and now its mammals. (yes. humans are animals...) who thinks birds will be the next? not saying were dying off anytime soon or anything. (even though the myans say the human race will end dec. 21, 2012...) im just wondering! it kinda maks sence though. reptials, mammals, birds. or maybe fish... lol. (sorry for sucking at spelling.)

2006-10-04 14:41:53 · 7 answers · asked by Marissa 3 in Other - Science

Chemistry, I can't seem to find the reason how.

2006-10-04 14:39:39 · 7 answers · asked by poet356 1 in Chemistry