Science & Mathematics - 19 October 2007

subject.

2007-10-19 16:01:25 · 1 answers · asked by mortifiedpengn 3 in Biology

my teacher said there is a comet heading for earth and it will im pact in 2029 is this true or a lie

2007-10-19 16:00:12 · 13 answers · asked by fadi_elias93 2 in Astronomy & Space

I'm american international high school student.
I don't khow how do the light-dependent reactions of photosyn
thesis relate to the Calvin cycle?
please help me.

2007-10-19 15:55:50 · 3 answers · asked by hitman182769 1 in Botany

x^5/4-4x^1/4=0

2007-10-19 15:53:23 · 3 answers · asked by Dill K 1 in Mathematics

solve the formula for the indicated variable
P-3Q/7=P+5/2 (+1 ) for P

2007-10-19 15:51:57 · 8 answers · asked by Dill K 1 in Mathematics

I was thinking of acid+copper+zinc=nigh everlasting electricty.
Is this true?

2007-10-19 15:51:41 · 5 answers · asked by taco 2 in Chemistry

A child exerts a tangential 50.0N force on the rim of a disk-shaped merry-go-round with a radius of 2.50m. If the merry-go-round starts at rest and acquires an angular speed of 0.0800rev/s in 5.00s, what is the child's mass?

2007-10-19 15:50:55 · 6 answers · asked by Nik 1 in Physics

2007-10-19 15:48:05 · 7 answers · asked by ausomadam 1 in Mathematics

Find the value of x.

a) 3x + 1 = 2
------------------
5 7
5 should be under 3x+1 and the 7 should be under 2

2007-10-19 15:47:42 · 6 answers · asked by Anonymous in Mathematics

its kindu trikee......not vary good at math :)

2007-10-19 15:46:57 · 16 answers · asked by zach 2 in Mathematics

why don't hamsters have belly buttons? how would they get food from there mommys when there in there tummys?

2007-10-19 15:42:27 · 14 answers · asked by pokeableanna 3 in Zoology

2007-10-19 15:41:52 · 1 answers · asked by Anonymous in Biology

I was thinking basically when you break all math down it all adds up to me you multiplying and subtracting numbers and variables in the correct way right?
And what is the highest hardest level of math to all people including college professors and isn't there any way we could even get better forms of math even more fundamental then calculus. I'm sure they're is.

Thank you I know that I asked a lot of questions.

Thansk alot and god bless

2007-10-19 15:39:42 · 2 answers · asked by Luvon 3 in Mathematics

public int sumOtherDiag()
{
int b = square.length - 1;
int i = 0;
int sum = 0;
while(i <= square.length - 1 && b >= 0)
{


sum = sum + square[i][b];
i++;
b--;
}
return sum;
}
does not sum correctly for 4by4 square with all 5s it gives me 15.
The other diagonale is:
*
*
*
*

2007-10-19 15:36:26 · 2 answers · asked by Jake L 3 in Mathematics

2007-10-19 15:35:48 · 4 answers · asked by ausomadam 1 in Mathematics

Given that a, b, and c are real numbers that satisfy:

a = sqrt(c^2 - (56/5)^2) + sqrt(b^2 - (56/5)^2)
b = sqrt(a^2 - 144) + sqrt(c^2 - 144)
c = sqrt(b^2 - (168/13)^2) + sqrt(a^2 - (168/13)^2).

Find the value of (a+c)/(2b)

2007-10-19 15:34:55 · 2 answers · asked by absird 5 in Mathematics

2007-10-19 15:34:36 · 4 answers · asked by Anonymous in Astronomy & Space

2007-10-19 15:29:37 · 2 answers · asked by Ladan T 1 in Mathematics

My teacher only ever gave us half life problems that worked out evenly and never bothered to teach us the formula or how it works. So now I some problems that I have to work out and I need to use the formula... please help! Here are the problems:

The first atomic explosion was detonated in the desert north of Alamogordo, New Mexico, on July 16, 1945. What percentage of the strontium-90 (t1/2 = 28.8 years) originally produced by that explosion still remained as of July 16, 2000?

A patient is administered 20 mg of iodine-131. How much of this isotope will remain in the body after 20 days if the half-life for iodine-131 is 8 days?

Thanks!

2007-10-19 15:28:14 · 2 answers · asked by Kai 2 in Chemistry

A. Earths oceans are liquid
B. Earth has an atmosphere
C. Earth has a magnetic field
D.Earths moon causes oceanic tides

2007-10-19 15:26:51 · 5 answers · asked by tdoby3 2 in Earth Sciences & Geology

I would like to ask what is the paper we used in offices ,schools called as industrial term. I mean also the paper we use for photocoplies, also in the industrial term.

and if anyone knows a site or information about this particular segment of the pulp and paper industry ,kindly let me know

Many thanks
Thank you

2007-10-19 15:24:19 · 2 answers · asked by McGill 1 in Engineering

2007-10-19 15:23:24 · 5 answers · asked by engot 2 in Astronomy & Space

How to Integrate
1)x^2 tan^-1 x dx?(*x is not the power of tan)
2)xln(9+x^2)dx?

2007-10-19 15:23:05 · 3 answers · asked by Edison T 1 in Mathematics

Why do they want to know so much about the universe?

2007-10-19 15:21:37 · 15 answers · asked by Rockstar 6 in Astronomy & Space

and if yes, how does a spiral galaxy maintain its shape?
or does it?

2007-10-19 15:20:57 · 6 answers · asked by Anonymous in Astronomy & Space

When a mycelium infiltrates an unexploited source of dead organic matter, what are most likely to appear within the food source soon thereafter?

1) exoenzymes
2) Haustoria

2007-10-19 15:18:04 · 1 answers · asked by joshlee 1 in Biology

height of 1.65m. suppose the ball is in contact with the floor for 15.0ms. What is the magnitude of its average acceleration during the contact with the floor?

2007-10-19 15:17:54 · 3 answers · asked by bigtregre 1 in Physics

Where can I learn any and everything about electric motors...magnetism that produces electricity, how to create electricity, and amplify the currents...I want to know any tricks I can learn on how to modify RC engines, electric motors, heck even gas enigines, anything and everything that is small, I wanna know how to make the small go as fast as possible, i have my porjects, this is something I've been wanting to do, so Where can I learn everything, where can I be taught? Thanks :)
If you have any questions, i don't plan on do anything to abuse my knowledge, just have fun with knowledge, I'm a student so makeing RC things go faster fly higher and what knot is cool, welll, you can ask me at www.forgetfull@yahoo.com
lol, o yeah(my friend created the account, I'm so busy studying that i usualy forgett how to spell my account, I had 10, all different names similar but completely different passwords...again, thanks for any help you can give :)

2007-10-19 15:15:42 · 3 answers · asked by Anonymous in Physics

was 6.509s. In 2001, Sam Whitt beat Hubers record by 19.0km/h. what was Whitt's time through the 200m?

2007-10-19 15:15:12 · 2 answers · asked by bigtregre 1 in Physics

2007-10-19 15:13:50 · 2 answers · asked by Eric 1 in Engineering