Science & Mathematics - 17 December 2007

Air is a mixture of gases.Name four gases present in the air,and give rough % proportions of each of them

2007-12-17 06:36:29 · 2 answers · asked by simons194 1 in Other - Science

A) oils
B) amino acids
C) fatty acids
D) waxes
E) lards

I think it's B, am I right?

2007-12-17 06:30:27 · 6 answers · asked by Ken 1 in Biology

I just did a lab to find the rate of reaction of iron and iodine (order of reaction, etc.). However, how would I use the Beer-Lambert law and a standard iodine solution to calculate "k"?

2007-12-17 06:26:15 · 2 answers · asked by Anonymous in Chemistry

How does electric potential aid an appliance? What would it be like without it?

2007-12-17 06:18:09 · 3 answers · asked by Anonymous in Physics

2007-12-17 06:17:59 · 4 answers · asked by Zhelyz 2 in Zoology

In your home, electric potential is in numerous appliances. (go ahed an name some common ones if you want.) Can you name some interesting or uncommon devices that have an intriguing electric potential? And give me its votls and amps...

Thanks

2007-12-17 06:16:20 · 2 answers · asked by Anonymous in Physics

2007-12-17 06:15:26 · 32 answers · asked by Anonymous in Physics

2007-12-17 06:14:32 · 2 answers · asked by Anonymous in Mathematics

2007-12-17 06:12:10 · 16 answers · asked by Anonymous in Paranormal Phenomena

Which one makes more more sense overall?

2007-12-17 06:07:22 · 11 answers · asked by Anonymous in Earth Sciences & Geology

2007-12-17 06:04:55 · 1 answers · asked by Anonymous in Botany

i know the difference between the two, one is mammal, one is fish...they don't look anything alike, etc.....

but WHY is the mahi-mahi called a "dolphin-fish" ?

2007-12-17 06:04:19 · 5 answers · asked by alcmena 4 in Zoology

I am just wondering if psychic is real. can they really look into the future and what is with the "free will" believe. If you know who it is. Can I have some information I need to solve some problem that i have been having for 6 months now.

2007-12-17 06:00:59 · 13 answers · asked by tvpham1984 2 in Paranormal Phenomena

Find f''(x) if f(x) = √4x+9

(just so u know that is the square root of 4x+9)

______
V 4x+9

need solution please

you are all of a great help, i have done almost 107 calculus problems over the past 4 days and have been stumped on about 20 or so... Thank you so much for your time and help

2007-12-17 06:00:53 · 10 answers · asked by calchelp1 1 in Mathematics

2007-12-17 06:00:50 · 3 answers · asked by Anonymous in Zoology

when i'm given ..
acceleration is 0.55 m/s^2
pushing force on a 1kg box is 3.14 N

fyi
the box is being pushed across the floor of an elevator that is moving up.

2007-12-17 05:59:45 · 4 answers · asked by mandm 2 in Physics

i have some agar and the petri dishes and tubes and slides ive looked at pond water and all kinds of things around the house but i want to look at more and i cant fund a book for dumies to help me learn to look at some stuff fast please help if you know

2007-12-17 05:57:11 · 3 answers · asked by ang 1 in Botany

the answer is meant to be k^2. nothe the stated problem is only true for k greater than or equal to 4

2007-12-17 05:53:33 · 2 answers · asked by mike08 1 in Mathematics

2007-12-17 05:51:34 · 4 answers · asked by Jimmycrack 1 in Medicine

a) cube roots of -27i
b)fourth roots of 1
c) fourth roots of -8-8radical 3i

only know how to get only one of the roots.thanks

2007-12-17 05:48:47 · 3 answers · asked by nancy 1 in Mathematics

a 75 kg man is on a surface that has a coefficent of kinetic friction with his shoe soles of .15 and a static coefficent of 0.2. A 50 kg woman is on a surface that has a coefficent of kinetic friction with her shoe soles of 0.25 and a static coefficent of 0.35. If they have a tug a war, (a) who will be the first to move and (b) what will the acceleration be if the stationary person maintains as much tension in the rope as possible without slipping?

2007-12-17 05:48:18 · 1 answers · asked by mandm 2 in Physics

Hi, does anyone know where i can find more about this topic ? fire resistant steels for structural applications. thanks

2007-12-17 05:47:38 · 5 answers · asked by killer_boy03 2 in Engineering

Determine the amount of an investment if $1,000 is invested at an interest rate of 11.2% compounded monthly for 45 years.

2007-12-17 05:46:42 · 2 answers · asked by Anonymous in Mathematics

dispersion
dipole
ionic

2007-12-17 05:43:22 · 1 answers · asked by V 1 in Chemistry

The use of iPods has increased in popularity. In 2001, there were 20 million people who used one. Assuming the use of iPods increases 10% annually, predict the number of people using an iPod in 2009.

2007-12-17 05:41:17 · 6 answers · asked by Anonymous in Mathematics

A man called Joe is feeling suicidal. He steals a time machine and goes back in time to when he was a child. He pulls out a gun and shoots his 12 year old self.
What would happen?

2007-12-17 05:38:18 · 24 answers · asked by Anonymous in Other - Alternative

I've been laughed at and sent home with a shattered fibula, they told me it was bruise! I have never been to the ER and been treated with any respect. I know the brightness seems a little low in there, but why are they rude? No one goes to the ER for fun - but it's their job! They are the only ones planning to be there - so why the attitude? You go in hurt and get treated like an animal in a slaughterhouse. Where are the professionals?

2007-12-17 05:37:56 · 8 answers · asked by Amy R 7 in Medicine

As you know Schistosomaisis , live in the stomack of some persons .

2007-12-17 05:37:01 · 2 answers · asked by citizen high 6 in Other - Science

A) The total amount of entropy in the universe is increasing.

B) The total amount of energy in the universe is increasing.

C) The total amount of matter in the universe is constant.

D) The total amount of energy in the universe is constant.

2007-12-17 05:36:48 · 3 answers · asked by JoJo 2 in Chemistry

Which star of the pleiades is the planet around ?

2007-12-17 05:35:46 · 3 answers · asked by Kara 2 in Astronomy & Space