Science & Mathematics - 17 August 2007

What can you eat so that mosquitoes will not be attracted to you or bite you?

2007-08-17 04:17:13 · 6 answers · asked by Hannah<33 1 in Zoology

i want to capture sequence of the place in goggle earth panning in and out.. video or jpeg or gif.. need to do story board for my project.. dead line 2 days from now...

2007-08-17 04:15:44 · 4 answers · asked by mael-78 2 in Astronomy & Space

2007-08-17 04:09:39 · 17 answers · asked by robert g 1 in Astronomy & Space

I took Algebra 2 last year.
This year, my school asked me to take AP Calculus.
But I didn't take Pre-cal.
Is it ok?

2007-08-17 04:06:20 · 5 answers · asked by shchuang38 3 in Mathematics

2007-08-17 04:04:52 · 6 answers · asked by Bill W 【ツ】 6 in Geography

engineering trivia q/a.air foil technology brings forth the star trek hydro turbo lift systems.is this a form of hydrolisis or numeric nu~matic.or a fancy engineering term .for its transport make up.taking into account 0 gravity's positive/negitive effects.hydro,or num;? signed;degoi of our empire earths;new futuristic systems; of which you are a necesity;engineering specialist beyond 2007.

2007-08-17 04:02:00 · 3 answers · asked by Anonymous in Engineering

Consider five points A, B, C, D and E such that ABCD is a parallelogram and BCED is a cyclic quadrilateral. Let \ell be a line passing through A. Suppose that \ell intersects the interior of the segment DC at F and intersects line BC at G. Suppose also that EF=EG=EC. Prove that \ell is the bisector of angle DAB.

2007-08-17 03:47:30 · 2 answers · asked by ahmad p 2 in Mathematics

for listening to frequency modulation signals

2007-08-17 03:45:42 · 2 answers · asked by george_cool 1 in Engineering

2007-08-17 03:43:39 · 10 answers · asked by Anonymous in Chemistry

2007-08-17 03:41:39 · 7 answers · asked by ayecajoy 1 in Physics

2007-08-17 03:39:30 · 1 answers · asked by ayecajoy 1 in Physics

2007-08-17 03:37:00 · 6 answers · asked by ayecajoy 1 in Physics

Hi,
Could you solve the equation z^(2) = sqrt(3) - 3*i. Please answer in the form z = x + i*y.

* = multiply with
sqrt = square root

2007-08-17 03:32:17 · 10 answers · asked by Anonymous in Mathematics

with explanation or way to solve

2007-08-17 03:27:34 · 6 answers · asked by Mary Grace A 1 in Mathematics

Also, was Newton aware during his lifetime of just how out of the ordinary his thinking power was?

2007-08-17 03:14:11 · 4 answers · asked by Anonymous in Physics

Find the LCM for 6 and 9.

Simplify: –(–28).

Solve the system by addition
5x – 3y = 13
5x – 3y = 13

The sum of two numbers is 80. The second is 8 more than 3 times the first. What are the two numbers?

Thanks

2007-08-17 03:13:56 · 5 answers · asked by Anonymous in Mathematics

It could be another animal perhaps, but it sounds not entirely quite unlike a rabid cat.

2007-08-17 03:13:22 · 12 answers · asked by Ultrastooge™ 2 in Other - Science

Hi,

Could you please determine the tangent line for the curve y = ln x, in the point (a, ln a)? Also determine a so that this line goes throw Origo. Thank you so much. :)

2007-08-17 03:11:53 · 1 answers · asked by Anonymous in Mathematics

with explanation or way to solve

2007-08-17 03:09:52 · 5 answers · asked by Mary Grace A 1 in Mathematics

35 mL of ethyl alochol (density= 0.789 g/mL) is added to a graduated cylinder that weighs 44.28 g. What will be the mass of the cylinder plus the alcohol?

2007-08-17 03:09:34 · 5 answers · asked by Caramel 2 in Mathematics

A student attempted to determine d % by mass of nitrogen in Nitrochalk by d following titrimetric procedure.
2g of nitrochalk was heated with 25cm3 of 2.00M NaOH until no more NH3 was evolved.The mix. was filtered to remove d CaCO3.The filtrate was then made up to 250cm3 by adding distilled water and 25cm3 portion were titrated against 0.1M HCL.It was found that 30cm3 of acid was required to neutralize d NaOH left over.
1)From the given data,calc. d number of moles of ammonium nitrate present in the original sample of fertilizer
2)Calc. the % by mass of nitrogen in the fertilizer and
3)The % by mass of CaCO3 in d nitrochalk

Nitrochalk is a widely used fertilizer that conts NH4NO3 and CaCO3

2007-08-17 03:08:43 · 7 answers · asked by Emperor 3 in Chemistry

anybody know any good website where i can find the aspirin synthesis, with beginning compound a phenol... thank u

2007-08-17 03:05:29 · 3 answers · asked by Anonymous in Chemistry

with explanation or way to solve

2007-08-17 03:04:44 · 2 answers · asked by Mary Grace A 1 in Mathematics

2007-08-17 03:04:29 · 3 answers · asked by pata 1 in Engineering

The father died and leave 17 horses to his 3 sons. In the testament it says; the eldest son should get 1/2 of the total number of horses, . . the second son should get 2/3 of whatever is left over the eldest son, and the third son should get 2/3 of whatever is left over the second son.
And so they follow the will of the deceased father, and everybody is contented . . . . and there were no dead horses brought with them.
How is did they do it. How horses did each son get?

2007-08-17 03:03:21 · 3 answers · asked by CPUcate 6 in Mathematics

5x – 7y = 70

2007-08-17 02:57:23 · 9 answers · asked by Anonymous in Mathematics

2007-08-17 02:57:23 · 3 answers · asked by gaurav a 1 in Engineering

I'm not talking about textbooks, but science/math books of interest to the general reader with some knowledge of the subject (because of college level science/math education or because of pure interest in the subject) , it could also be biographies of scientists/mathematicians that touch on some of their theories, etc.

Just started reading Sylvia Nasar's "A Beautiful Mind" about John Nash. Don't know if its good, will know soon.
I just finished Antonio Damasio's "Looking for Spinoza" and thought it was very interesting, though I guess the theories might have already been discredited considering the book's been around for so many years... I remember reading all of Carl Sagan's books when I was a kid and thought I wanted to do astronomy in future, and recently am rekindling that love for reading some of these math/science books again. But I don't really like reading the hard stuff unless its for exams.

2007-08-17 02:57:14 · 17 answers · asked by rachiepachie 3 in Other - Science

A mix. of CO and CO2 diffuse through a porous diaphragm in one half of d time taken for d same vol. or bromine vapour.What is the % composition by vol. of d mixture.

2007-08-17 02:57:02 · 3 answers · asked by Anonymous in Chemistry

2007-08-17 02:56:07 · 5 answers · asked by aling b 1 in Other - Science