Science & Mathematics - 11 November 2007

2007-11-11 03:48:36 · 4 answers · asked by ver 2 in Zoology

A. Cellulose cell wall
B. Vascular Tissue
C. Chlorophylls
D.Being photosynthestic autotrophs
E.Being eukaryotic

2007-11-11 03:37:41 · 3 answers · asked by LadyJustice 2010 2 in Botany

D2f(x) is the second derivative of f(x)

2007-11-11 03:34:40 · 2 answers · asked by amir 2 in Mathematics

If so is there a proof for it?

Pamela

2007-11-11 03:30:46 · 2 answers · asked by twinklestar_pam 1 in Mathematics

Deer jumps over fence
With graceful leaping beauty.
Sine curve models height.

Six feet above ground,
Each leap requires 1 second.
The equation, please?

When t=o
The deer is over the fence
At its maximum height.

I dont know what the period would be for this problem. Can someone help me find the sine and cosine equation for this. I don't know if it wants the cosine or sine equation. It would be nice if you showed the steps also. Thanks!

2007-11-11 03:27:53 · 4 answers · asked by Anonymous in Mathematics

its for homework its all in french and i'm sooo tierd...
please help me

2007-11-11 03:26:31 · 1 answers · asked by Anonymous in Earth Sciences & Geology

I was born with a pefectly circular brownish/reddish mole type birthmark on my left temple. It is flat but you can still feel it when you run your fingers in that area. Its the olny one I was born with. Could it be from a fatal injury in my past life?

2007-11-11 03:25:43 · 9 answers · asked by Anonymous in Paranormal Phenomena

could you leave me the reference for the answer thank u!

2007-11-11 03:25:11 · 9 answers · asked by skuba 1 in Biology

what evidence is there to show that continents used to be together? please help!!!

2007-11-11 03:20:27 · 10 answers · asked by Anonymous in Geography

2007-11-11 03:19:38 · 3 answers · asked by ? 2 in Chemistry

The equilibrium constant Kc for the reaction
PCl3(g) + Cl2(g) <--> PCl5(g)

equals 49 at 230C. If 0.400 mol each of phosphorus thrichloride and chlorine are added to a 4.00 L reaction vessel, what is the equilibrium, what is the equilibrium composition of the mixture at 230C?

Help me with this problem, thanks in advanced

2007-11-11 03:18:35 · 1 answers · asked by some guy 1 in Chemistry

Could someone please explain to me how the following expression equals 0? I've done it out, but I'm having trouble seeing why.

1/2 ∫ x*e^(px) dx + 1/2 ∫x*e^(-px) dx

Here, the limits on the first integral go from negative infinity to 0 and the limits on the second integral go from 0 to infinity.

2007-11-11 03:17:51 · 2 answers · asked by cornz000 1 in Mathematics

2007-11-11 03:13:00 · 7 answers · asked by James P 1 in Astronomy & Space

2007-11-11 03:11:56 · 6 answers · asked by Anonymous in Geography

acquire their four leaves? why?

2007-11-11 03:10:06 · 1 answers · asked by Anonymous in Earth Sciences & Geology

2007-11-11 03:07:47 · 4 answers · asked by Anonymous in Mathematics

Enforce this treaty from someone who if they had enough capital and/or resources claimed the Moon or a large peice of Mars?

2007-11-11 03:02:28 · 4 answers · asked by Anonymous in Astronomy & Space

Why a larger crosssection area will reduce the endurance strength?

2007-11-11 02:59:32 · 10 answers · asked by positivebigbill 1 in Engineering

2007-11-11 02:58:03 · 4 answers · asked by figure_skating_g 2 in Zoology

I need to place samples in the different humidity containers, but how could i alter them to have at least 4 different group?

2007-11-11 02:45:47 · 2 answers · asked by Anonymous in Engineering

2007-11-11 02:43:44 · 2 answers · asked by excavator82 1 in Earth Sciences & Geology

2007-11-11 02:40:51 · 10 answers · asked by M&M 1 in Geography

2007-11-11 02:39:33 · 5 answers · asked by יונתן 4 in Geography

I need help with this. Its my home work in science that I can't reallt understand. Please help me if you can. thanks

2007-11-11 02:33:12 · 16 answers · asked by PrincessAshley 1 in Chemistry

I just purchased a WO megrez 90 refractor. I do not know how to care for the lens and want to keep it in like new condition if I can. The other night I was observing with it and dew formed on the objective lens. What is the best thing for me to do when this happens? Can a dew buster be used on refractors? If I have to clean lens what is the best way to do it?

2007-11-11 02:30:46 · 6 answers · asked by comethunter 3 in Astronomy & Space

2007-11-11 02:24:13 · 2 answers · asked by dugramos 2 in Earth Sciences & Geology

What is the use of it?
How about Fourier transform?

2007-11-11 02:23:58 · 2 answers · asked by David Junior 3 in Engineering

Components, made of, has in it...

2007-11-11 02:17:41 · 4 answers · asked by Teresa C 2 in Earth Sciences & Geology

If 2 capacitor were arranged in parallel, does that mean that the current discharge would be X2?

Also, if a capacitor or 1F charged with 1V. Does that means it has 1 coulomb (1C = 1F x 1V)? If so, then when charged with 2V it will have 2C

2007-11-11 02:13:21 · 1 answers · asked by John Terry 2 in Engineering

and what hold them as such unique structures of mass

2007-11-11 02:12:53 · 8 answers · asked by Thor 2 in Chemistry