Science & Mathematics - 18 July 2007

Determine the slope of theline perpendicular to the line
-5x-3y+8=0 Please explain

2007-07-18 21:03:24 · 3 answers · asked by Anonymous in Mathematics

1) What is the formula of the copper containing reactant?
2) What is the formula of the other reactant?
3) What is the formula of the product? List the copper first.

2007-07-18 21:02:45 · 2 answers · asked by lulu 1 in Chemistry

Describe the steps you would follow in graphing x+2y<=2. Include in your answer whether you use a solid or broken line and where you shade, above or below the line.

2007-07-18 21:01:18 · 4 answers · asked by Anonymous in Mathematics

2007-07-18 20:58:34 · 4 answers · asked by blah 1 in Chemistry

No 2.) show the complex number Z=5L-150 degrees on ARGAND DIAGRAM and find Z in algebriac form.NO 3.Find the VOLUME of a parallelpiped with edges are given by these vectors:
A=2i-3j+4k
B=i+2j-k
C=3i-j+2k. I figure it out and got -7cmcube, since the volume can be either negative or positive. am i right? pls to maths genius.

2007-07-18 20:54:18 · 3 answers · asked by Joshua V 1 in Mathematics

how many teasponfuls of dxm shall i take now?

2007-07-18 20:53:45 · 3 answers · asked by Anonymous in Medicine

In 3D geometry 3 distinct points that are not on the same line determine a unique plane that contains those 3 points. Then why do most tables have 4 legs and not 3 legs? Isn't it possible that by adding the 4th leg, the points of contact to the floor would no longer be in the same plane?

2007-07-18 20:52:40 · 8 answers · asked by Sticky 2 in Other - Science

Alright, so we all know that when the discriminant is negative in the quadratic formula, negative roots are generated...
For a function f(x) = x^2 + x +1... are the imaginary roots

-0.5 + 0.866025i
-0.5 - 0.866025i

??

Please check up to verify my solution. Thank you all.

2007-07-18 20:48:38 · 1 answers · asked by LIFE HATER 1 in Mathematics

Is Time Travel Possible?
Not neseccarly now but in 100 - 1000 years do you think its possible?
I think it owuld be possible to go back in time but not forward in time.
If some one travels back in time what happens to the current time? it just stops or it keeps on going or what > do you think that if time travel were possible the govt would use it to prevent things and terrorist attacks or under no circumstance would it be allowed if it were possible?

2007-07-18 20:46:02 · 16 answers · asked by brewer37 1 in Other - Science

if i have a 100% insulator...it wont show properties of attraction/repulsion isnt it?

2007-07-18 20:44:59 · 2 answers · asked by Anonymous in Physics

2007-07-18 20:42:12 · 3 answers · asked by nellyhuangdezhi 1 in Geography

So Im wondering
why do liveing things, more specifically humans need sleep?
I mean theres the obviouse the body gets tired or you need energy but what part of the body actually gets tired just your muscles that keep you up I mean the brain , heart, and eyes dont actually need sleep do they? It just seems wierd if you actually think about it more in depth I mean you would think it would be easier for a person to stay up for say 24 - 48 hours if they had a high sugar intake . What actually causes you to get tired just your muscles doing activities

2007-07-18 20:41:54 · 6 answers · asked by brewer37 1 in Other - Science

It was removed as a planet by who? and how if it still in the solar system.

2007-07-18 20:36:18 · 8 answers · asked by Anonymous in Astronomy & Space

2007-07-18 20:33:20 · 2 answers · asked by glamsk_17 1 in Medicine

By natural fertilizers, we may prevent soil and water pollution

2007-07-18 20:32:39 · 16 answers · asked by ***<siwmt>*** 2 in Agriculture

I need to do a study on the sexual behaviour of the animals; which includes their behaviour, about the sexual organs and other similar information. Please help me.

I tried many sites but all the sites are porn; please help with good sites.

Additional Details

Actually I need the information such as the structure of the sexual organs and similar information (don't misunderstand - for an example the average length of a horse penis, does it have the glands and all).

I have already got information on many animals such as the gestation period, their behaviour with the partner and all.

Now what I need is the information on the organ structures.

2007-07-18 20:22:07 · 6 answers · asked by Poker 3 in Biology

2007-07-18 20:00:52 · 6 answers · asked by louie 1 in Biology

can you let me know which of the following is primarily a physical or primarily a chemical change:

1) boiling an egg
2) freezing ice cream
3) souring milk
4) boiling water
5) formation of a snowflake
6) churning cream to make butter

2007-07-18 19:54:52 · 3 answers · asked by lulu 1 in Chemistry

Thale seeing that moist is contained in all things their he begin affirming that the moist comes from water.

2007-07-18 19:50:12 · 1 answers · asked by jam 1 in Chemistry

we say that astronomical bodies revolve around one another due to Force of Gravitation?why do they not collide with one another instead of revolving?

2007-07-18 19:49:22 · 9 answers · asked by Anonymous in Other - Science

2007-07-18 19:43:33 · 12 answers · asked by Anonymous in Mathematics

3/5x = 15

2007-07-18 19:32:27 · 15 answers · asked by Chronos 2 4 in Mathematics

2007-07-18 19:29:34 · 4 answers · asked by Anonymous in Biology

2007-07-18 19:25:51 · 3 answers · asked by kyles 1 in Earth Sciences & Geology

2007-07-18 19:15:56 · 6 answers · asked by Anonymous in Astronomy & Space

2007-07-18 19:15:27 · 8 answers · asked by Anonymous in Astronomy & Space

China is planning to disperse the clouds on 2008 Olympics to achieve a favorable weather.

2007-07-18 19:15:24 · 2 answers · asked by Jing 1 in Weather

I was across the street with my girl and my homie mikey looking for scrap to cash in, and mikey was with the flashlight lookin for stuff and my girl was watching him, when all the sudden i look up and see a comet looking light, light green flying down towards the ground, maybe about 200 300ft up, kind of looked like a firework, but it was heading straight towards earth, and i then it just exploded into sparks, no noise at all, please tell me someone knows what this is, it couldnt be a comet, because it was light green, very bright and didnt just dissapear, it exploded with sparx. i was shocked at the moment but when i caught my senses i told my girl to look and finally she looked and it was gone...NOONE saw it but me, and now im all paranoid and thinking im crazy...Anyone know what this is?

2007-07-18 19:13:49 · 7 answers · asked by hatexsociety88 1 in Astronomy & Space

I'm not too good with searching for specific things, especially dealing with data.

I have a math project to do, and my teacher wants us to find a real life "phenomena" that has increases and levels out. It should also resemble a square root function. I really have no clue where to start.

If this makes sense, please help! Thanks!

2007-07-18 19:13:18 · 3 answers · asked by Anonymous in Mathematics

fastest humans have ever got a space craft to go is somthing like 150,000 miles an hour. Cause in space there is in gravity slowing you down. And if this is true is there a way to go faster like using explosives or somthing.

I really tried not to sound like an idiot so take it easy please.

2007-07-18 19:12:54 · 5 answers · asked by Anonymous in Astronomy & Space