Science & Mathematics - 12 December 2006

Separate question:

4th quadrant angle
sec(x)= 13/12

Second quadrant angle
sin(y)= 4/sqrt(45)

Find the exact value of sin(x-y)

2006-12-12 16:43:34 · 1 answers · asked by grugger165 1 in Mathematics

2006-12-12 16:43:12 · 2 answers · asked by Mike 3 in Zoology

what is snow

2006-12-12 16:42:05 · 23 answers · asked by Riley W 1 in Weather

calculate the mass flow rate in grams per secomd of blood p is 1.0 g/cm^3 in an aorta branches to form a large number of cpullaries with a combined cross-sectional area of 3.0 times 10^3 cm^2. what is the flow speed in the capillaries?

2006-12-12 16:41:40 · 1 answers · asked by Kitana 2 in Physics

my boyfriend had hiccups for about 5 days now what can be the problem

2006-12-12 16:41:29 · 31 answers · asked by jctorres70 1 in Biology

has any one here wished upon a shooting star, and your wish came true? serious answers only please!

2006-12-12 16:40:08 · 5 answers · asked by Eva Nicole 4 in Astronomy & Space

f(x) =

{x²-1, x<-1
{ax+b, -1 {rad(2x+5), x>2

2006-12-12 16:39:09 · 3 answers · asked by strawberry 1 in Mathematics

what can we do to increase their choleserol levels? What must be fed to the rabbits to increase their cholesterol?

2006-12-12 16:38:22 · 2 answers · asked by Mike 3 in Biology

Water is pumped into a storage tank from a well delivering 20. gallons of water in 30.0 seconds through a pipe of 1.00 in.^2 cross-sectional area. What is the average velocity of the water in the pipe as the water is pumped from the well?

2006-12-12 16:36:51 · 3 answers · asked by Kitana 2 in Physics

Find the volume of the solid whose base is enclosed by the circle
x^2 + y^2 = 100 and whose cross sections taken perpendicular to the x-axis are equilateral triangles.

ACK! Any help with this is greatly appreciated ><

2006-12-12 16:36:26 · 2 answers · asked by thesekeys 3 in Mathematics

the question is 18 is 25% of what number

2006-12-12 16:35:04 · 16 answers · asked by italian wakesurfer 2 in Mathematics

(cont)...182. what are the numbers?

2006-12-12 16:34:02 · 4 answers · asked by Help! 1 in Mathematics

2006-12-12 16:29:48 · 7 answers · asked by Destiny . 2 in Mathematics

So, the universe is always expanding, which means that it must have an "end," or a limit. So let's pretend that you could travel to the edge of the universe and survive... what would happen when you reached the end? What would happen if you tried to go past the end? What would you hit? Sorry if this sounds stupid, I was just thinking about it. And I don't mean what would happen to you, I mean, what's there?

2006-12-12 16:26:06 · 10 answers · asked by person 3 in Astronomy & Space

2006-12-12 16:24:49 · 2 answers · asked by Anonymous in Mathematics

Select the monomer that would produce the following addition polymer (Teflon).

http://capa.chem.sunysb.edu/nan/teflon.gif


a) CF3CF3

b) CF2Cl2

c) CF2=CF-CF3

d) CF2=CF-CF=CF2

e) CF2=CF2

Please help and thank you. ^_^

2006-12-12 16:23:25 · 4 answers · asked by Raki 3 in Chemistry

2006-12-12 16:23:18 · 7 answers · asked by ? 5 in Medicine

I'm wondering if you can go to Space Camp for free if you have wings already. (Hartselle Space Camp)

2006-12-12 16:21:10 · 2 answers · asked by ub3r1337 1 in Astronomy & Space

Butene, C4H8, is a hydrocarbon with one double bond. How many noncyclic isomers can be drawn?

A) 1 B) 2 C) 3 D) 4

2006-12-12 16:21:08 · 4 answers · asked by Anonymous in Chemistry

i know this sound a bit ridiculous,but.....

2006-12-12 16:19:35 · 6 answers · asked by Anonymous in Astronomy & Space

Find the volume of the solid whose base is enclosed by the circle
x^2 + y^2 = 4 and whose cross sections taken perpendicular to the x-axis are squares.

V=?
Thanks! :)

2006-12-12 16:16:53 · 3 answers · asked by thesekeys 3 in Mathematics

Chemistry, Silver Nitrate+ Sodium Bromide

2006-12-12 16:16:29 · 4 answers · asked by Drew 1 in Chemistry

2006-12-12 16:16:10 · 1 answers · asked by Dave F 1 in Biology

i really need an answer for this question, and i need to know how to solve this question thanks

2006-12-12 16:12:49 · 7 answers · asked by Ahmed A 1 in Mathematics

i really need an answer for this question thanks

2006-12-12 16:11:29 · 3 answers · asked by Ahmed A 1 in Mathematics

A 0.400 M solution of an acid, HA, has a pH = 1.301. What is the value of the ionization constant, Ka, for
this acid?

A) 5.00 x 10-2 B) 1.25 x 10-3 C) 5.56 x 10-3 D) 6.25 x 10-3

2006-12-12 16:11:16 · 3 answers · asked by chemchem 1 in Chemistry

2006-12-12 16:10:17 · 49 answers · asked by Anonymous in Chemistry

i heard that a wormhole may help travelling foward in time,but.........

2006-12-12 16:08:40 · 12 answers · asked by Anonymous in Astronomy & Space

No clue how to solve this!

2006-12-12 16:08:38 · 6 answers · asked by Kasturi R 2 in Mathematics

2006-12-12 16:08:06 · 10 answers · asked by Ahmed A 1 in Mathematics