Science & Mathematics - 16 August 2007

The element copper is a lustrous red metal. The element oxygen is a coloress,oderless gass. In a laboratory expariment,which of these wouls demonstrate that fthey have formed compound

A the elements have combined a form a new substance that is black,crytallie solid.

B the elements are in diffenent rows on the periodic table.

c Each element appears to be unaffected when placed near a sample of a clear liquid

d both elements are present in a sample of a mixture.

2007-08-16 07:17:56 · 2 answers · asked by Anonymous in Chemistry

2007-08-16 07:14:41 · 5 answers · asked by jrels2 2 in Other - Science

I have a bottle of Flintstones vitamins, and I stopped taking them for a while, and I just opened them and the vitamins all have little black specks on them. Is that a mineral oxidizing- iron, magnesium, zinc...?

2007-08-16 07:11:08 · 6 answers · asked by Anonymous in Chemistry

I have some relatives in The Woodlands, Texas.

2007-08-16 07:08:50 · 17 answers · asked by Anonymous in Weather

I have always wondered, what part of the human body creates blood? We lose blood in nose bleeds,cuts etc, so it needs to be replaced, plus we have twice as much volume when we are 18 than we do when we are 13. So in 5 years, the body has created double the blood supply, plus all that lost blood?!

2007-08-16 07:07:22 · 11 answers · asked by hedaman353 2 in Biology

I am planning on building o air powered cannon out of 2'' pvc.

2007-08-16 07:06:27 · 11 answers · asked by michaelbaseballnyy 2 in Engineering

2007-08-16 07:06:11 · 6 answers · asked by Anne 2 in Chemistry

2007-08-16 07:05:31 · 5 answers · asked by chapped lips 5 in Astronomy & Space

The parametricmequations are
x = t^3 - e^(-t), y = t^2 - e^(-2t)
(i) Find the equation to the curve at the point where t=0

The curve cuts the y-axis at the point A.
(ii) Show that the valu of t at A lies between 0 and 1.

2007-08-16 07:04:08 · 3 answers · asked by polol 2 in Mathematics

PLEASE HELP I UNDERSTAND HOW THEY GOT THE FIRST PART OF THE ANSWER BUT THE 12XY IM LOST ON

2007-08-16 07:03:28 · 10 answers · asked by pouncey03 1 in Mathematics

like the people who make a career out of finding explanations for strange happenings? or try to prove the ghosts are real?

2007-08-16 07:01:43 · 16 answers · asked by the_price_family 1 in Paranormal Phenomena

I want to be a paranormal investigator, what kind of training would I need? I really want to study the paranormal, and I allready do that but do I have to get some kind of training to officially call myself a paranormal investigator? I am 14 so I have time to figure out what I have to do before I can do it and time to be sure I really want to get into this, so any help is greatly appreciated.

2007-08-16 07:00:08 · 10 answers · asked by kid v 1 in Paranormal Phenomena

I caught this crane fly in my garage but is almost the size of a dragonfly. It has a 3 inch wingspan. I saved it in a jar because I though no one would believe me.
so do they really get this big or is this thing a freak?

2007-08-16 06:56:03 · 4 answers · asked by NO! 2 in Zoology

does the east coas not have a mid??? lol

2007-08-16 06:55:39 · 13 answers · asked by chapped lips 5 in Geography

is it theoretical or is it real and is it true that it has negative weight!!??

2007-08-16 06:51:48 · 2 answers · asked by claire_is_my_name 3 in Astronomy & Space

2007-08-16 06:50:37 · 2 answers · asked by Anna 2 in Biology

c'mon kids. use google.

2007-08-16 06:50:18 · 9 answers · asked by Anonymous in Other - Science

2007-08-16 06:50:07 · 8 answers · asked by tiger_gabriel98 1 in Mathematics

Two parallel cylindrical wires made of lead have diameters D=4mm and the distance between their axes is L=5mm.

Both wires are in superconductive state. The wires carry currents I=30A each in opposite directions.

What is the force of magnetic relpulsion F between the wires per unit length (per 1 meter)?

Note:
Meissner effect: magnetic field does penetrate inside bulk lead (type I superconductor).


I asked this question 16 times in physics section, and got no answer. Maybe matematicians could help me.
Easy-to-use magnetic force calculator can be found here:
http://hyperphysics.phy-astr.gsu.edu/hbase/magnetic/wirfor.html

2007-08-16 06:48:51 · 3 answers · asked by Alexander 6 in Mathematics

A. Beadle.
B. Wilson.

C. Morgan.

D. Mendel

2007-08-16 06:48:32 · 18 answers · asked by jasnyne k 1 in Biology

x +y=13

22x + 36y=356

2007-08-16 06:46:54 · 4 answers · asked by dianajiminez 1 in Mathematics

It is no secret that people and groups have been questioning our Government about the facts surrounding 9/11. And if that attack was taken advantage of to get into Iraq.

Staged Terror - Is something going to happen at the DC Rally on the 18th-19th?

There will be thousands of American's and families there


U.S. Martial Law is the next goal of the Globalists

"Summer Attack"

Saturday the 18th is the anniversary of Britian's burning of Washington/Whitehouse in 1813.

We have been warned: Crop circles. Notice in the first one the masonic and Illuminati symbols.

The pyramid, seeing eye and a crecent moon. Notice there is also a symbol of a nuclear diagram.

http://www.earthfiles.com/news.php?ID=1299&category=Environment

http://www.earthfiles.com/news.php?ID=1302&category=Environment

http://www.unknowncountry.com/journal/?id=297

http://www.unknowncountry.com/journal/

Never have crop circles warned us with a pattern of an event and given a specific date.

2007-08-16 06:46:33 · 6 answers · asked by scottanthonydavis 4 in Other - Alternative

(x+4)^(3/4) times (x+3)^(-2/3) minus (x+3)^(1/3) times (x+4)^(-1/4) all divided by [(x+4)^(3/4)]^2

please help as i am not sure where to even begin with this one

2007-08-16 06:45:08 · 2 answers · asked by confused 2 in Mathematics

if so, with what argumen?

2007-08-16 06:40:13 · 15 answers · asked by Anonymous in Astronomy & Space

what causes maggots on dead animals?

2007-08-16 06:37:21 · 5 answers · asked by stan_hightower 1 in Biology

hi, i was just wondering if you could help me in answering the question why a circuit with 4 diode has a higher frequency than a 2 diode circuit..

2007-08-16 06:31:32 · 7 answers · asked by princessreiden 3 in Engineering

2007-08-16 06:28:21 · 16 answers · asked by rachel s 1 in Astronomy & Space

2007-08-16 06:26:19 · 10 answers · asked by autolicious95 1 in Mathematics

2007-08-16 06:22:14 · 9 answers · asked by Anonymous in Other - Science

I live at a small man-made lake. I noticed someone had left a pile of Bluegills just laying there to die.
I picked up one and ran it through the water backwards to get water running through it’s gills. After about 4 times of doing this, it gave a little shudder and swam away.
I did the same thing to the next five fish and they all shuddered and swam off once they were revived.
The last fish had to wait about 5 minutes from me spending so much time with the others before him, so it was pretty close to dead.
I ran him through the water backwards about 7 times and it wasn’t responding. I kept at it and finally it gave a slight shudder and swam off disappearing into the depths.
I stood up feeling good that I saved them but wasn’t too sure about the last one. I hung around feeling kind of good about helping them when I saw this one fish come slowly chugging along towards me.

2007-08-16 06:20:24 · 18 answers · asked by Father Ted 5 in Other - Alternative