Science & Mathematics - 3 October 2007

A car travels west for 240km in 4 hours. How do I figure the cars velocity? Please help thank you.

2007-10-03 03:54:48 · 3 answers · asked by m1a1 1 in Mathematics

Guys can you help me out?

What would the chemical equation be for:

placing magnesium metal over a flame. Make bright light, turns to ash.

CuSO4. 5H2O is heated.

A bit of potassium chlorate is placed in a test tube and heated. Glowing splint is inserted.

Just the chemical equations, please!

Thanks!
-Stan

2007-10-03 03:54:41 · 1 answers · asked by stan k 1 in Chemistry

2007-10-03 03:52:21 · 2 answers · asked by Anonymous in Chemistry

The Katie Melua song, "Nine Million Bicycles"

We are 12 billion light-years from the edge,
That's a guess — no-one can ever say it's true,
But I know that I will always be with you

should be...


We are 13.7 billion light-years from the edge of the observable universe,
that's a good estimate with well-defined error bars,
Scientists say it's true, but acknowledge that it may be refined,
and with the available information, I predict that I will always be with you .

And Faith Hills, This kiss;

It' s the way you love me
It's a feeling like this
It's centrifugal motion
It's perpetual bliss
It's that pivotal moment
It's (ah) impossible
This kiss, this kiss

when there is no such thing as Centrifugal Motion.

And Rufus wainwright 'The Brightest of the Planets Is Mars'
FOOL!!! it's VENUS!!!

2007-10-03 03:52:02 · 4 answers · asked by Anonymous in Other - Science

I am writing an English paper on the Apollo 11 mission being staged. Anyone know of any good websites which could help support my argument? Any help would be appreciated.

2007-10-03 03:51:01 · 7 answers · asked by Brandon R 2 in Astronomy & Space

please with examples , thanks
2- what the differents between expense and asset ?

2007-10-03 03:50:07 · 2 answers · asked by Dsalah s 3 in Engineering

a hydrate of sodium phosphate contains 49.7% water by weight.

a) how many grams of water and how many grams of anhydrous Na3PO4 are in 1000. grams of this sample?

b) In this same 1000. gram sample, how many moles of water and how many moles of anhydrous Na3PO4 are present.

c. What is the formula of the hydrate?

(i need the computation for fully understanding) thanks

2007-10-03 03:50:03 · 2 answers · asked by semi_sonic18 1 in Chemistry

Hey, I don't have a single Sceintific Calculator, just regular characters...
In order to do these sums I need a specific button... that is the Xy button...
Here are the questions... please help, I wouldnt normally ask for help but I really need it, no rescources to do it myself...

(1.012)9 (the 9 is a tiny one that sits raised up above the rest, if you know what I meen)

(1.035)8 (same with this 8)


Basically, the formula of button to press is this...
Press 1.035 > Xy > 9 > =
and the same with the other...
Thankyou for you help :) I appreciate it in advance...

2007-10-03 03:49:52 · 4 answers · asked by Anonymous in Mathematics

What does the y intercept? I think it is x=0, y=2. I need the answer for y. Thanks for all your help.

2007-10-03 03:45:02 · 9 answers · asked by SweetMelissa990 1 in Mathematics

2007-10-03 03:38:01 · 11 answers · asked by Kim Harold A 1 in Physics

2007-10-03 03:38:00 · 3 answers · asked by da niquester 1 in Mathematics

1. What volume of 0.2 M Fe(NO3)3 is needed to make 50 mL of 0.002 M Fe(NO3)3?
2. WHat are the concentrations of Fe+3 and NO-3 in a 0.2 M Fe(NO3)3 solution?
3. If 5 mL 0,002 M Fe(NO3)3 is mixed with 5 mL 0.002 M KSCN calculate the initial concentration of Fe+3 and SCN- in the solution

2007-10-03 03:37:17 · 2 answers · asked by Anonymous in Chemistry

Is there a method? I mean square roots can be extracted manually....

btw.... where does 20 in extracting square roots come from??

2007-10-03 03:36:41 · 3 answers · asked by Aya Aux 1 in Mathematics

more than less than forgot which is which < >

2007-10-03 03:34:27 · 8 answers · asked by Anonymous in Physics

I CAN'T UNDERSTAND IF STEPHEN HAWKINGS PEA INSTANTON THEORY OR ALAN GUTHS QUANTUM FLUCTUATION ORIGIN ARE NOT PROVEN THEN IN EUROPE WHY DO MANY PEOPLE THINK SCIENCE EXPLAINS BETTER THAN RELIGION

2007-10-03 03:32:05 · 5 answers · asked by BODIN 1 in Physics

2007-10-03 03:30:00 · 11 answers · asked by Aditya G 1 in Astronomy & Space

2007-10-03 03:28:24 · 3 answers · asked by pop cola2000 1 in Engineering

the Anatolian fault line?

2007-10-03 03:28:21 · 7 answers · asked by Aditya G 1 in Earth Sciences & Geology

I have been asked to draw lowest energy conformer of 4-tert-butylcyclohexanone and to mark whether the substituent is an axial or equatorial orientation or neither...
somebody please help..
does this have to be drawn as a newman projection .. im confused. Thank u!

2007-10-03 03:28:06 · 2 answers · asked by Anonymous in Chemistry

many points in science are disputed ( see global warming debate ), so what is the best definition you know for what is science, and what is not.

2007-10-03 03:27:54 · 9 answers · asked by simon r 3 in Earth Sciences & Geology

Is it in a permanent orbit, or would it have crashed into the moon or sun?

2007-10-03 03:26:51 · 7 answers · asked by pete the pirate 5 in Astronomy & Space

2007-10-03 03:24:02 · 2 answers · asked by tim c 2 in Botany

2007-10-03 03:23:08 · 5 answers · asked by fergus m 2 in Weather

2007-10-03 03:18:27 · 5 answers · asked by fergus m 2 in Weather

forces cancel

2007-10-03 03:15:33 · 2 answers · asked by Henz Mista 1 in Physics

2007-10-03 03:14:07 · 2 answers · asked by bob 1 in Mathematics

dy/dx= [7x-2]^-2

y=?

2007-10-03 03:13:14 · 5 answers · asked by Chocolate Strawberries. 4 in Mathematics

2007-10-03 03:10:34 · 3 answers · asked by prava 2 in Mathematics

considered a child? or a human? scientifically please, no opinions.

2007-10-03 03:07:22 · 7 answers · asked by --ever-after-him-- 2 in Biology

use synthetic division:

6x²+ 11x^5-28x^4 - 39x³ +4 6x^2 +28x - 24 ÷ 2x^3 - x^2 – 7x + 6=

8x^5 – 14x^4y - 13x^3 y + 16x^2 y + 5xy^4 – 2y^5 ÷ 4x^2 + 3xy – y^2 =

2x^6 – 3x^4 – x^2 + 2x – 3 ÷ x^3 – 2x^2 + x – 3=

3x^5 – 2x^3 + x – 1 ÷ 2x + 1=


well.. i don't know how to do it...can smbody pls.. explain to me and pls. teach me how to solve this...

thnx in advance..

2007-10-03 03:05:42 · 5 answers · asked by jeanleenor 1 in Mathematics