Science & Mathematics - 26 November 2006

It seems to me I read something years ago about water lilies being a problem somewhere (maybe Florida?) because of their prolific reproduction and created havoc for boaters. But seems to me that there was research done and they do more good cleaning up the water than aggravation to boaters? Am I remembering wrong?

2006-11-26 06:39:32 · 2 answers · asked by Gnome 6 in Botany

2
ò (x - 1)^8 dx =
0


I got 2/11 ... is this correct?

2006-11-26 06:38:06 · 1 answers · asked by chris 2 in Mathematics

i heard if you take the gum out after a month and eat it youll hallucinate

2006-11-26 06:38:05 · 4 answers · asked by gage c 1 in Other - Science

a) that a positive test charge would move
b) that it randomly oriented
c) that a negative test charge would move

2006-11-26 06:34:55 · 1 answers · asked by gbmac722 2 in Physics

2006-11-26 06:34:32 · 1 answers · asked by Anonymous in Biology

An Airplane is traveling 25 degrees west of north at 300 m/s when a wind with velocity 100 m/s directed 35 degrees east of north begins to blow.Determine the speed and direction of the resultant velocity.

Please explain to me how to do this with a graph T_T

2006-11-26 06:32:14 · 5 answers · asked by Alex 1 in Physics

_______________________________________________________

............ x
If f(x) = ò t dt, then f ''(x) =
............ 2

2006-11-26 06:31:06 · 1 answers · asked by chris 2 in Mathematics

2006-11-26 06:29:58 · 3 answers · asked by YY 1 in Mathematics

the drama club sold 1500 tickets for the end of -year performance. admission . prices were $12 for adults and $6 for students. the total amount collected at the box office was $15600 . how many students attended the play?
thanx

2006-11-26 06:29:56 · 7 answers · asked by pearl 2 in Mathematics

And can you explain your answer(s)?

2006-11-26 06:29:30 · 2 answers · asked by Anonymous in Physics

I need a dynamic assembly model in solid works composed of 7-8 parts .Plz help.

2006-11-26 06:29:24 · 1 answers · asked by Anonymous in Engineering

x+y=4
2x-y=2

2006-11-26 06:28:00 · 6 answers · asked by Elsa R 1 in Mathematics

A net external force is applied to a 6.90-kg object that is initially at rest. The net force component along the displacement of the object varies with the magnitude of the displacement as shown in the drawing.

(b) What is the speed of the object at s = 20.0 m?

Here's the picture

http://i143.photobucket.com/albums/r132/carlarnold1/wevb.jpg

2006-11-26 06:27:09 · 2 answers · asked by Anonymous in Physics

Find an equation of the line through the point (2,5) that is perpendicular to the line y = 1/2x + 6.

Is it F(x) = -2x + 1 ?

2006-11-26 06:23:44 · 6 answers · asked by crazylifer 3 in Mathematics

2006-11-26 06:23:02 · 3 answers · asked by rick james 1 in Biology

my project counts for 200 pnts!!!!!!!!!

2006-11-26 06:22:47 · 3 answers · asked by mamama 2 in Chemistry

im sure ants can think, i'm sure worms and think, what about amebas or those other single cell organisms. protozoa or whatever, and paramecium. don't they need to think to find food? so what about the cells in our bodies? they have to decide what to do don't they? they have to know what to let into the cell and what to let out. how does your skin know that it has to heal? I sure as heck don't tell it to. it does it by itself. so am i built up of millions of tiny thinkers? In high school biology i was taught that the nucleus of a cell is the "brain" of the cell, or control center. how can it do this job without a mind?

2006-11-26 06:18:10 · 5 answers · asked by smokesha 3 in Biology

And what does it have to do with density?

2006-11-26 06:16:47 · 2 answers · asked by honeybunny09@sbcglobal.net 2 in Chemistry

Picture (or draw) a four quadrant graph with a sloped line running between the points (-10,0) (10,4).

Using this..graph of "f" find f(0). I don't have a clue and can't find a formula to even attempt to figure this one out.

2006-11-26 06:16:13 · 6 answers · asked by crazylifer 3 in Mathematics

sin(4pi/12) yes and if you could also sin(pi/12) would be great also...

2006-11-26 06:15:13 · 2 answers · asked by Anonymous in Mathematics

2006-11-26 06:14:37 · 1 answers · asked by michele g 1 in Biology

i need this to help me in school. Thank You!

2006-11-26 06:14:24 · 3 answers · asked by linz k 2 in Earth Sciences & Geology

Imagine that you are an engineer. You are designing a radio transmission tower that will be 100 m high. It will be supported by cables, called guy wires as follows:
-The guy wires will be anchored on the ground at three equally spaced location in a circle around the tower.
-The distance of the anchor points from the base of the tower will be one quarter the height of the tower.
-There will be five guy wires from each anchor point. The guy wires will be attatched to five points on the tower at 20 m intervals, going up.

Calculate the total amount of guy wire needed. Each guy wire requires 2 m at each end to attatch it to the tower and base. Round your answer to the closest metre. Show all your work. (You must use the pythagorean theorem to solve).

2006-11-26 06:13:14 · 2 answers · asked by ;) 3 in Mathematics

Girls please email me cherrylippy22@yahoo.co.uk
im curious femine woman looking for a chat

2006-11-26 06:13:14 · 11 answers · asked by Anonymous in Weather

2006-11-26 06:12:04 · 10 answers · asked by Anonymous in Geography

Haplogroup C chromosomes are common south of the Phillipines, with a significantly greater diversity, calculated as the average variance of the repeat score across loci, in the southern populations (Southeast Asia and Melanesia) than in the northern ones (southern China and Taiwan) (P<.01; 1,000 bootstraps over chromosomes) (tables 1 and 2).

Given its proximity to the impressive reported P-value, I'm not sure if the term is a reference to genetics or statistics. Anybody know?

2006-11-26 06:11:42 · 2 answers · asked by Beckee 7 in Other - Science

is it something to do with oxygen?

2006-11-26 06:11:24 · 17 answers · asked by Vicky G 2 in Chemistry

a) aldehyde
b) ketone
c) alkoxide
d) ether

PLEASE explain!!! thanks

(q71)

2006-11-26 06:11:07 · 2 answers · asked by *AH AH* 1 in Chemistry

Classify each equation, determine reactants, predict the products and write corect formula?


I have to do a bunch of these so I need an example of how to do this.

2006-11-26 06:08:30 · 3 answers · asked by Sun 1 in Chemistry

when given that p=(17,9) and q=(9,18) When you have to find the component form and magnitude of the vector QP

2006-11-26 06:07:54 · 1 answers · asked by traci_spinks 1 in Mathematics