Science & Mathematics - 27 October 2007

write the equation representing the second ionization of iron. Indicate the states of the species in the reaction (s), (l), (g), (aq).

2007-10-27 07:25:50 · 1 answers · asked by greenie23510 1 in Chemistry

Both can't be flying, as either you need to flap wings (which no airplane does) or...wings must be stable, (as no bird's are.

One or the other is obviously NOT flying.

Which is it?

Or, are both illusions and myths?
.

2007-10-27 07:24:27 · 15 answers · asked by Anonymous in Other - Alternative

why do they insist the woman go on birth control after she has a baby? And they are performing tubals on women under 25 these days. WHY??
What if a woman's child passed away in a couple years and she wanted MORE?

2007-10-27 07:20:41 · 3 answers · asked by S i r i 1 in Medicine

I want to know how to figure out speed, so I was wondering if anyone knew a formula in how to figure it out? If not, is there a website that it will figure it out for me? Thanks!

2007-10-27 07:19:43 · 8 answers · asked by Sir_Knows_Alot 1 in Physics

why does rain and other forms of precipitation sometimes form a long a warm front why?

2007-10-27 07:19:42 · 3 answers · asked by john 1 in Weather

For the following endothermic reaction at equilibrium:

Fe2O3 (s) + 3 H2 (g) 2 Fe(s) + 3 H2O(g)

Decide (YES/NO) if each of the following changes will increase the value of K (T = temperature).


Add Ne(g) (constant T)

Add a catalyst (constant T)

Decrease the volume (constant T)

Add H2 (constant T)

Increase the T

Remove H2 (constant T)

Decrease the T

2007-10-27 07:16:13 · 2 answers · asked by Guinness 3 in Chemistry

2007-10-27 07:15:52 · 4 answers · asked by none 1 in Mathematics

Doug pushes a 5.30 kg crate up a 2.10-m-high 20 degree frictionless slope by pushing it with a constant horizontal force of 22.0 N. What is the speed of the crate as it reaches the top of the slope? Solve this problem using work and energy, and then using Newton's laws.

2007-10-27 07:14:32 · 1 answers · asked by rochesmk 2 in Physics

2007-10-27 07:14:09 · 21 answers · asked by Anonymous in Weather

2007-10-27 07:12:49 · 10 answers · asked by none 1 in Mathematics

2007-10-27 07:11:51 · 20 answers · asked by losing my mind 2 in Physics

They have 2 different charges...how would i write it like that?

Ex: Ca(C2H3O2)2 +2, -1

2007-10-27 07:11:10 · 1 answers · asked by Amy 2 in Chemistry

if Doug leaves home on a trip to the lake that takes him to a position of 80km [W] of home, what is his displacement? do you know the distance that he traveled?

*ok. i really don't understand this question. can you explain the steps you took to solve this or any other displacement question?/
thanks!

2007-10-27 07:11:06 · 2 answers · asked by Bella! 3 in Physics

If a plane is traveling at takeoff speed on a conveyor belt, and the belt is matching that speed in the opposite direction, can the plane take off?

Discuss

2007-10-27 07:09:30 · 8 answers · asked by the saint 2 in Physics

2007-10-27 07:08:27 · 10 answers · asked by superdave 1 in Astronomy & Space

above the Earth's surface if its mass is 1500 kg.
N (toward the earth)

2007-10-27 07:08:26 · 3 answers · asked by cindy d 4 in Physics

I need this answer for my school project.
Plz reply.

2007-10-27 07:07:51 · 5 answers · asked by Mayuran A 1 in Engineering

with the given conditions: w varies directly as x and inversely as the square of y. If x = 15 and y = 5, then w = 36.
a. w= 3 x/y^2
b. w= 12 x/y^2
c. w= 36 x/y^2
d. w= 60 x/y^2

2.The period of a simple pendulum is directly proportional to the square root of its length. If a pendulum has a length of 6 feet and a period of 2 seconds, to what length should it be shortened to achieve a 1 second period?
a. 1 foot
b. 1.5 feet
c. 2 feet
d. 3 feet

3.Find the horizontal asymptote of the rational function:
f(x)= 8x-12 divided by 4x-2
a. y = 1/2
b. y = 3/2
c. y = 2
d. y = 4

4.Find the quotient and remainder of f(x) = x^4 - 2 divided by p(x) = x - 1.
a) x^3 + x^2 + 1; -1
b) x^3 + x^2 + x + 1; -1
c) x^3 + x + 1; -1
d) x^3 - x^2 - x - 1; -1

5. Find the polynomial f(x) of degree three that has zeroes at 1, 2, and 4 such that f(0) = -16.
a. f(x)=x^3-7x^2+14x-16
b. f(x)=2x^3-14x^2+28x-16
c. f(x)=2x^3-14x^2+14x-16
d. f(x)=2x^3+7x^2+14x+16

2007-10-27 07:05:14 · 1 answers · asked by jane 1 in Mathematics

2007-10-27 07:04:20 · 3 answers · asked by beginner 1 in Medicine

2007-10-27 07:04:04 · 21 answers · asked by steve S 1 in Biology

extraction et précipitation d'ADN en image,?

2007-10-27 07:00:58 · 1 answers · asked by imen z 1 in Botany

What will happen to me?

2007-10-27 07:00:49 · 1 answers · asked by Daryl M 3 in Medicine

Since the year 1900 their has been these tornadoes
Tornados
Tri-State Tornado 1925
Tupelo Miss. 1936
Gainesville Ga 1936
Woodward Okla 1947
Amite La and Purvis Miss 1908
Flint Mich 1953
Waco Texas 1953
Goliad Tex 1902
Omaha Neb 1913
Mattoon Ill 1917
Shinnston W. Va 1944
Gainesville and Holland Ga 1903
Poplar Bluff Mo 1927
Snyder Okla 1905
Natchez Miss 1908
Worcester Mass 1953
Starkville Miss Waco Ala 1920
Lorain Sandusky Ohio 1924
Udall Kansas 1955
St. Louis Mo 1927


And well I need 25 and I only have 18 do you know, or do you know a website that can tell me 19,20,21,22,23,24,25? They have to be in the USA and they can not be before 1800 this is my science project (due decmember) and it is going to rock

2007-10-27 06:57:58 · 6 answers · asked by Jessi H 2 in Weather

Which of the following is equivlaent ot the inequality 10 F. x<4
G. x>4
H X>-4
J.X<16
K. x>16
please dont give me just the answer i want really specific steps on how do it

2007-10-27 06:55:47 · 6 answers · asked by Anonymous in Mathematics

when it descends to earth, how much is the max g-force?

2007-10-27 06:55:36 · 2 answers · asked by anonymously-unknown 3 in Astronomy & Space

2007-10-27 06:54:12 · 4 answers · asked by Anonymous in Mathematics

1. 6 (x + 2) / 4 = 2x - 2
2. 3x + 7/5 = 4x -3/5
3. 6 (y-8) / 5 = -4y

2007-10-27 06:52:22 · 3 answers · asked by Anonymous in Mathematics

solve for x in terms of a,b, and c: cx over a= b

plz n thnks!

2007-10-27 06:51:48 · 4 answers · asked by Soprano 2 in Mathematics

2007-10-27 06:49:07 · 4 answers · asked by Anonymous in Mathematics

2007-10-27 06:42:36 · 3 answers · asked by Arsman 3 in Mathematics