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Science & Mathematics - 31 January 2007

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Agriculture · Alternative · Astronomy & Space · Biology · Botany · Chemistry · Earth Sciences & Geology · Engineering · Geography · Mathematics · Medicine · Other - Science · Physics · Weather · Zoology

Let p>2 be prime. Let a be the 2x2 matrix (0 1 / -1 0). Prove that fa(SL(2,Fp)) < A(p+1).

ps: fa is f sub a, Fp is F sub p and A(p+1) is A sub (p+1).

2007-01-31 03:00:33 · 1 answers · asked by kula o 2 in Mathematics

2007-01-31 02:58:05 · 2 answers · asked by identity_letters 2 in Engineering

i've been wondering how we came about the XX and XY chromosomes..like after fertilization, where do this sex chromosomes came from?

2007-01-31 02:56:41 · 5 answers · asked by iraperzari 2 in Biology

Ethylene glycol (HOCH2CH2OH), the major substance in anitfreeze, has normal boiling point of 198 C. By comparison, ethyl alcohol (CH3CH2OH) boils @ 78 degree C at atmospheric pressure. ethelyne glycol dimethyl ether (CH3OCH2CH2OCH3) has a normal boiling point of 83C & ethyl methyl ether (CH3CH2OCH3) has a normal b.p of 11C.

Question: 1) explain why replacement of a hydrogen on the oxygen by CH3 generally results in a lower b.p.


2) What are the major factors responsible for the difference in b.p . of the two ethers?

Please help lost.

2007-01-31 02:54:30 · 5 answers · asked by Anonymous in Chemistry

I understand it was to be sometime in 2007 but have not heard when that will be--related question: what makes it different from the WMAP satellite?

2007-01-31 02:53:33 · 1 answers · asked by dolls_house_of_leaves 1 in Astronomy & Space

What is the total surface area of the windows in a New York City subway car?

2007-01-31 02:53:13 · 1 answers · asked by DK 1 in Other - Science

its pretty gross it just ozzes out and gos down my face

2007-01-31 02:53:06 · 11 answers · asked by Dal3y 1 in Other - Alternative

When it snows, I have to clear the snow in front of his store. If it snowed 10 inches, what would be the total weight of the snow I have to clear from the front of his store?

2007-01-31 02:52:01 · 2 answers · asked by DK 1 in Weather

2007-01-31 02:51:42 · 5 answers · asked by Anonymous in Astronomy & Space

2007-01-31 02:50:48 · 7 answers · asked by akku 1 in Astronomy & Space

a- the momentum of each object
b- the kinetic energy of each object
c- the total momentum of all the objects
d- the total kinetic energy of all the objects

2007-01-31 02:48:47 · 4 answers · asked by AC 1 in Physics

2007-01-31 02:48:45 · 1 answers · asked by torirowe 2 in Chemistry

2007-01-31 02:47:54 · 1 answers · asked by goldilocks 2 in Earth Sciences & Geology

2007-01-31 02:47:53 · 5 answers · asked by brandon j 1 in Medicine

2007-01-31 02:42:30 · 5 answers · asked by kalre 2 in Zoology

2007-01-31 02:41:40 · 5 answers · asked by Miss LaStrange 5 in Physics

I want to know what do you think is the univers,YOUR opinion.

2007-01-31 02:39:17 · 13 answers · asked by Burcea R 1 in Astronomy & Space

2007-01-31 02:38:46 · 1 answers · asked by Anonymous in Chemistry

a. (0,4);9
b. (4,0);3
c. (-4,0);9
d. (0,4);3

2007-01-31 02:37:22 · 9 answers · asked by Anonymous in Mathematics

2007-01-31 02:34:54 · 3 answers · asked by William S 1 in Engineering

2007-01-31 02:34:37 · 6 answers · asked by Ruchira S 1 in Engineering

game, a player makes a jump shot at an angle of 70 degrees with the horizontal giving the ball a velocity of 10m/s. The ball is released at the height of basket and its a score!. Did the player tie the game or put the team ahead?

2007-01-31 02:34:29 · 6 answers · asked by donann 2 in Mathematics

If a conditional statement is true, what must also be true? Check all that apply.

A. none of these
B. its contrapositive
C. its converse
D. its inverse

2007-01-31 02:33:43 · 0 answers · asked by Rattiesrule 2 in Mathematics

a. (0,4);9
b. (4,0);3
c. (-4,0);9
d. (0,4);3

2007-01-31 02:33:26 · 3 answers · asked by lana l 1 in Mathematics

lim (sqrt x - 1)/ (x-1)
x->1

2007-01-31 02:27:10 · 5 answers · asked by tweetys_01 3 in Mathematics

I'M LOSING MY MIND WITH MATH!

2007-01-31 02:27:03 · 25 answers · asked by Anonymous in Mathematics

A 125.0 mL sample of nitrogen at 790 torr was compressed to a volume of 75.0 mL in a syringe. What was the pressure of trapped nitrogen in torr?

can someone give me the formula so I can figure this out???

2007-01-31 02:26:36 · 5 answers · asked by MEB 2 in Chemistry

2007-01-31 02:25:56 · 3 answers · asked by Mazaher 2 in Geography

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