Science & Mathematics - 23 December 2007

please tell

2007-12-23 13:06:27 · 2 answers · asked by Anonymous in Earth Sciences & Geology

2007-12-23 13:03:54 · 7 answers · asked by golfer7 5 in Astronomy & Space

2007-12-23 13:03:50 · 10 answers · asked by jerry 1 in Astronomy & Space

Just wondering.
Thanks

2007-12-23 12:57:06 · 5 answers · asked by Anonymous in Other - Science

Like on an appliance. A hot plate.

2007-12-23 12:56:34 · 2 answers · asked by Carl W 1 in Engineering

Looking at the moon tonight, we always see the same side. Does the sun ever shine on the other side that we do not see?

2007-12-23 12:55:37 · 5 answers · asked by Harley S 1 in Astronomy & Space

2007-12-23 12:52:10 · 11 answers · asked by jerry 1 in Physics

Can you show them apart so that I know which is which. I appreciate it soooo much!

First one is:

(r-5s+4) + (8r+4s) +(s+7)

Second one is:

(x to the fourth - 12x to the second +35) Divided by (x to the second - 7)

THANK YOU!!

2007-12-23 12:43:35 · 9 answers · asked by Tank 2 in Mathematics

that you can think of.?..eg..Describe the universe in detail,giving two examples.

2007-12-23 12:29:38 · 5 answers · asked by Rajan A 3 in Astronomy & Space

Plz expalin

2007-12-23 12:27:24 · 1 answers · asked by hi pplz!!!!!:} 1 in Botany

2007-12-23 12:26:26 · 3 answers · asked by Anonymous in Geography

2007-12-23 12:24:56 · 8 answers · asked by bub... 2 in Astronomy & Space

2007-12-23 12:24:40 · 19 answers · asked by redsanfieldsaints 1 in Astronomy & Space

f(x) = 2x^2 - x + 3

f ( -a) =

i got this for an answer -2a^2 + a + 3

but the book says im wrong and the (-2a^2) has to be a positive.... why is that ?

2007-12-23 12:22:05 · 15 answers · asked by Anonymous in Mathematics

tonight 12/23/07
if u look out at the moon in the rings of light theres a tiny sparkling speck ?what is that

2007-12-23 12:16:59 · 6 answers · asked by Anonymous in Astronomy & Space

Does anyone know the exact downwards force the comes out of a compressed tank of air, to any size?

2007-12-23 12:15:25 · 2 answers · asked by gmaguitar01 1 in Physics

28/100 COVERTED INTO A DECIMAL?

Is 3.671 <>or = to 3.67?

0.368 < > or = to 0.3680

2007-12-23 12:14:22 · 13 answers · asked by Flyyasever 3 in Mathematics

Please explain your answer clearly. If any of you boiled vinegar before, explain your observations.
Also, can you write the chemical formula for vinegar
(ex. Water = H20 (the #2 is a subscript #)).

2007-12-23 12:12:16 · 3 answers · asked by rufftyroff 3 in Chemistry

when we look up into space, we are looking into the past about 3,000 years ago, the reason we are looking that far is because even thought light travels 186,287 miles per second we are so far aaway that it takes 3,000 years to get here, wow. so remember when you look at space you are looking 3,000 years into the past so how do we know that some of those stars and planets are still there?

2007-12-23 12:07:12 · 12 answers · asked by Anonymous in Astronomy & Space

What is the best live weather doppler map for chicago?

2007-12-23 12:02:19 · 4 answers · asked by chicubs584 2 in Weather

Is it Canada or Russia? What's your say? Please help me find the answer. Thanks

2007-12-23 11:50:21 · 2 answers · asked by Anonymous in Geography

Consider the combustion of 1.56 mol of liquid
ethanol (C[2]H[5]OH) to gaseous water and car-
bon dioxide. Calculate the enthalpy change
for this reaction. The pertinent enthalpies of
formation (in kJ/mol) are
Hf H2O = -241.8
Hf CO2 = -393.5
Hf C[2]H[5]OH = -277.7
Answer in units of kJ.

2007-12-23 11:44:05 · 2 answers · asked by Anonymous in Chemistry

I think it is mars. (East coast of US) Am I correct?

2007-12-23 11:39:09 · 3 answers · asked by Anonymous in Astronomy & Space

every one whos anyone is getting shifty when people talk about 2012 abut it being the end of the world and stufff

i thought this is when the planets would aine and create serious weather when they did due to gravitational pull

and then i heard about a big comet that is meant to strike in 2019.

and then i heard about the mayans talking about it was the end of their calander, therefore the end

lastly i heard it was a new era like ne000.01 or something

PLZ EXPLAIN :)

2007-12-23 11:36:05 · 10 answers · asked by Anonymous in Astronomy & Space

can someone explain how gases are exchanged between the alveoli and capillaries that surround them?
i tried to look but i didn't get the correct answers

2007-12-23 11:27:51 · 2 answers · asked by Anonymous in Biology

Where in the United States is one of the largest super Volcanos on the planet located and is it active? How much damage could this Volcano cause?

2007-12-23 11:14:09 · 4 answers · asked by Anonymous in Earth Sciences & Geology

i got my 10 inch dob out tonight and looked at mars. what I saw was a small dot that was red. you couldn't distinghish the polar caps or see any detail.

How can I make mars look at it's best?

2007-12-23 11:07:56 · 8 answers · asked by Jansen J 4 in Astronomy & Space

2007-12-23 11:01:09 · 2 answers · asked by No Name 1 in Mathematics

What sorts of obstacles would the Jupiter moon present us? Has anyone learned what the terrain is like? Is there crazy weather phenomena?

2007-12-23 10:53:35 · 13 answers · asked by ozonesweep89 1 in Astronomy & Space

i need help with this question. please help me with this.

Assume that f(x)=cos^3x.solve f '(x)=0 for x in the interval [0,2pi]

2007-12-23 10:53:06 · 8 answers · asked by zeze 1 in Mathematics