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Science & Mathematics - 31 January 2007

[Selected]: All categories Science & Mathematics

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

2007-01-31 06:52:37 · 11 answers · asked by Anonymous in Mathematics

I need one. Please no schems but photos, videos or animations.

2007-01-31 06:52:07 · 1 answers · asked by Anonymous in Physics

2007-01-31 06:48:58 · 22 answers · asked by clarke 1 in Weather

How would you compute the heat change for the reaction of 1.24 grams of NO according to the following equation?

2NO + O2 → 2NO2 +114.14 kJ

2007-01-31 06:48:16 · 1 answers · asked by San Fran Kid 2 in Chemistry

2007-01-31 06:48:12 · 4 answers · asked by guneet b 1 in Engineering

When happen to the piles when the concrete fail the lab test?

2007-01-31 06:46:39 · 4 answers · asked by VC C 1 in Engineering

open, it contains dexamethasone sodium phosphate 1mg
neomycin sulfate 5mg

i opened about a year ago, and now i need it again, can i use it?
what is the problem?

2007-01-31 06:45:46 · 3 answers · asked by nomno13 2 in Medicine

2007-01-31 06:44:00 · 3 answers · asked by tennessseegirl 2 in Weather

the earth is rotating at a high speed. why doesn't the centrifugal force throw us into space. and why don't we feel it?

2007-01-31 06:42:53 · 15 answers · asked by Anonymous in Astronomy & Space

2007-01-31 06:41:59 · 4 answers · asked by Brian S 2 in Weather

2007-01-31 06:41:43 · 5 answers · asked by Jen ... 2 in Mathematics

y = x^2 -5x + 3


and these points as well


y = -x^2 +6x -2


Thanks

2007-01-31 06:40:57 · 4 answers · asked by CookFrNW 3 in Mathematics

2007-01-31 06:40:42 · 9 answers · asked by Brian S 2 in Weather

(3x+2)^2=9

THIS IS (3X+2)SQUARED =9
If someone could please help with this by showing step by step how this process works.
thanks

2007-01-31 06:40:23 · 6 answers · asked by lonergirl 1 in Mathematics

need to give the range of values of x and y for which the expressions on each side of this equation are defined

2007-01-31 06:40:12 · 2 answers · asked by Crap_At_Maths 2 in Mathematics

2007-01-31 06:38:22 · 8 answers · asked by gorgeous 1 in Zoology

Please show step-by-step process.

2007-01-31 06:35:32 · 5 answers · asked by Anonymous in Mathematics

Two sides of a triangle are 8 and 5. The third side of the triangle is a whole no.How many possible lengths for the third side are there?

2007-01-31 06:35:26 · 7 answers · asked by carl 1 in Mathematics

The dissolution of NH4ClO4 in H2O is endothermic.
DeltaH for the solution is 33.5 KJ/mol.
If you prepare a 1.00m solution of NH4ClO4, with the water beginning at 25C, what is the final temperature of the solution?
Note: Assume that the specific heats of pure water and the solution are the same, 4.18 j (k*g).

2007-01-31 06:34:24 · 2 answers · asked by Anonymous in Chemistry

2007-01-31 06:34:05 · 21 answers · asked by Anonymous in Mathematics

I have a graph with a line with the points .... (0,1) and (1,0) How do I find the slope and y intercept.

Also I have a line that forms a "u" shape with some of the points being.....
(0,0) - (3,-5) - (4,0) How do I find the "vertex point" and any x axis intercepts????

2007-01-31 06:33:53 · 5 answers · asked by CookFrNW 3 in Mathematics

And when you mixe the mouthwash and use it the ratio stays the same.

2007-01-31 06:30:44 · 3 answers · asked by patrick e 3 in Earth Sciences & Geology

.0003837

I don't have a calculator to work with right now. Thank you

2007-01-31 06:29:04 · 11 answers · asked by Mellio 2 in Mathematics

Example: Mean score on a scale of 1-10 is 7.9 and the standard deviation is 1.78. 2 or 3 standard deviations exceeds 10. How do I explain that.

2007-01-31 06:27:28 · 1 answers · asked by crait 1 in Mathematics

2007-01-31 06:27:22 · 4 answers · asked by patrick e 3 in Physics

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