Science & Mathematics - 1 October 2007

If it does, how long does it take?
Sorry just curious :D

2007-10-01 03:19:42 · 3 answers · asked by Pat U 1 in Chemistry

Last night I heard this big spider making some buzzing noises similar to a mosquito.

2007-10-01 03:13:15 · 2 answers · asked by Anonymous in Biology

Explain how you would solve this equation using a graphing calculator and then give the solution.
2x – 3y = 8
5x + 4y = 11

Step One:

Step Two:

Step Three:

Step Four:

Step Five:

I'm a confused on how to put this on a graphing caculator so please help...

2007-10-01 03:09:08 · 5 answers · asked by MEB 2 in Mathematics

1)Na
2)K
3)Mg
4)Al
5)Li

2007-10-01 03:08:16 · 2 answers · asked by shruthi3993 1 in Chemistry

options are
1)rock oil
2)heavy oil
3)Gas oil
4)residue
5)none

2007-10-01 03:01:47 · 10 answers · asked by shruthi3993 1 in Physics

2007-10-01 02:59:21 · 1 answers · asked by Terri L 2 in Biology

2007-10-01 02:58:36 · 1 answers · asked by Terri L 2 in Biology

2007-10-01 02:57:47 · 13 answers · asked by Autumn 2 in Astronomy & Space

2007-10-01 02:57:33 · 1 answers · asked by Terri L 2 in Biology

if the winds are out of the southwest ahead of a fast moving cold front and behind it northwest, what direction are the winds out of during the actual passgae of the cold front, not after it passes through? would they be strong too?

2007-10-01 02:53:05 · 3 answers · asked by Anonymous in Weather

2007-10-01 02:45:55 · 8 answers · asked by crazycrazycamel 1 in Astronomy & Space

the options are

a.0 b.1 c.2 d.0

2007-10-01 02:38:02 · 6 answers · asked by shruthi3993 1 in Mathematics

I think that a ghost and supernatural power are lies, and a UFO is true.

2007-10-01 02:37:21 · 17 answers · asked by Anonymous in Paranormal Phenomena

Why is everyone talking about the of end of world in 21 12 2012?They said the end will be on 1999 then on 06 06 2006,and look we are still here.And what is with that maya calendar?How they can predict the end of world?
What will be on 21 12 2012?
-alien invasion
-asteroid will hit earth
-World War 3
-Huge solar storm
or what?and this is true or everything is a big lie?
I need your opinion not textes from wikipedia,google etc.
thanx

2007-10-01 02:25:42 · 15 answers · asked by Anonymous in Astronomy & Space

You mix 5.0 mL of 0.50 M Cu(NO3)2 with 2.0 mL of 0.50 M KI, and collect and dry the CuI precipitate. Calculate the following:


Moles of Cu(NO3)2 used:


Moles of KI used:


Moles of CuI precipitate expected from Cu(NO3)2.


Moles of CuI precipitate expected from KI.

What mass of CuI do you expect to obtain from this reaction?

If the actual mass of the precipitate you recover is 0.081 g, what is the percent recovery of the precipitate?

2007-10-01 02:23:32 · 2 answers · asked by Anonymous in Chemistry

1)Why is Plaster of Paris written as CaSO4•½ H2O? How is it possible to have half a water molecule attached to CaSO4?


2) How does Baking Soda help to make cakes and bread soft and spongy? Also, how is it a good fire extinguisher?


3) When electricity is passed through an aqueous solution of sodium chloride, three products are obtained. Why is the process called chlor-alkali?

2007-10-01 02:13:36 · 2 answers · asked by Akilesh - Internet Undertaker 7 in Chemistry

please factor

2a^2 + 6a - 20 the answer should be in this form

__ ( + ) ( - )

2007-10-01 02:11:58 · 7 answers · asked by runnerguy59 1 in Mathematics

Is it real or fake?

2007-10-01 02:10:33 · 6 answers · asked by Jack 3 in Zoology

sometimes people say that water is removed from clothes in a spin dryer by centrifugal force throwing the water outward. What is wrong with this statement?

2007-10-01 02:06:06 · 7 answers · asked by i-sena 1 in Physics

2007-10-01 02:05:17 · 3 answers · asked by Anonymous in Zoology

It would be kind of good if it did - just imagine, the UK and USA would welcome those fleeing terror, politicians would smile and mean it, we could all live free, there'd be no pollution / bloodshed / wars, we'd all be living in harmony - mind. bodies, spirits...

There's no such wonder cure? How wrong you are!
Ah, you're waiting till science has patented and packaged it, charging a bomb for it...

2007-10-01 02:00:16 · 16 answers · asked by Anonymous in Other - Alternative

a passenger is smoking in the backseat of a moving car. To remove the smoke, the driver opens his window just a bit. Explain why the smoke is drawn to and out of the driver's window

2007-10-01 02:00:04 · 7 answers · asked by i-sena 1 in Physics

A.. Doppler
B.Russell.
C.Hubble
D.Hertzsprung.

2007-10-01 01:43:37 · 7 answers · asked by LaKeshia H 1 in Astronomy & Space

2007-10-01 01:41:11 · 2 answers · asked by Tabitha P 1 in Engineering

A. Spiral
B. Elliptical
C. Central
D. Irregular

2007-10-01 01:36:53 · 11 answers · asked by LaKeshia H 1 in Astronomy & Space

like what each property means like clarity u can see thorugh it ect.

2007-10-01 01:29:41 · 4 answers · asked by Anonymous in Earth Sciences & Geology

2007-10-01 01:29:05 · 26 answers · asked by Anonymous in Biology

Hello! I'm taking a Intro. to Engineering Class. I have a project where we have to find a product with a performance clam that seems to be based off scientific evidence. Then evaluate the claim. I already have a few ideas. But if anyone has anymore, I would appreciate it.

Like I said, this is just a Intro. class, so the project isn't ment to be too technical.

2007-10-01 01:25:25 · 2 answers · asked by Anonymous in Engineering

2007-10-01 01:17:48 · 1 answers · asked by vicky 1 in Astronomy & Space

2007-10-01 01:01:52 · 4 answers · asked by Anonymous in Mathematics