Science & Mathematics - 17 December 2007

I know that they come from animal wastes and from improperly maintained septic tanks, but is there any other way that Nitrates come from?

2007-12-17 10:57:52 · 2 answers · asked by dgaf 2 in Biology

please answer this question to me... it will help me to pass my test better.

2007-12-17 10:55:08 · 2 answers · asked by Anonymous in Biology

I need to know the average percent visibility of Mars of each month please. Or maybe just a website that has that information.

2007-12-17 10:54:39 · 6 answers · asked by Anonymous in Astronomy & Space

Explain why certain bugs can walk o water.

2007-12-17 10:51:59 · 1 answers · asked by Anonymous in Other - Science

Since light has the property of special relativity space and time must distort and dilate respectively to accommodate this. However the effects are only noticeable to humans are speeds approaching light speed.

2007-12-17 10:51:27 · 4 answers · asked by kano7_1985 4 in Physics

thanx

2007-12-17 10:49:03 · 7 answers · asked by Iprapropri 4 in Other - Alternative

2007-12-17 10:48:59 · 1 answers · asked by Anonymous in Mathematics

2007-12-17 10:48:55 · 9 answers · asked by Alexander 6 in Mathematics

i lost my senior high school photos about a week ago. i have looked all over my apartment and van. Where the heck did they go??they were in my kitchen and disappeared.

2007-12-17 10:47:17 · 6 answers · asked by me 4 in Parapsychology

They took a urine sample and a blood test....
do they drug test?
if so does it affect the surgery if its positive?
if your a minor do they have the right to tell your perents

2007-12-17 10:47:15 · 1 answers · asked by miller0509 1 in Medicine

i believe its called a crisalis? is that it? someone please help

2007-12-17 10:46:30 · 3 answers · asked by A Clockwork Girl 2 in Zoology

Suppose I have a shapefile-based layer of land ownership and another shapefile-based layer of the final perimeter of a wildfire. How would you create a final reporting of a list of landowners and the number of acres each lost to the wildfire? Be as detailed as possible in listing all steps and considerations.

2007-12-17 10:46:19 · 2 answers · asked by Anonymous in Geography

A 2600 kg car traveling north is slowed down uniformly from an initial velocity of 26.7 m/s by a 7950 N braking force acting opposite the car's motion.
What is the car's velocity after 1.92 seconds? Answer in m/s.
help please?

2007-12-17 10:46:12 · 1 answers · asked by Samantha K 1 in Physics

implicit differintiate:
y times the square root of x minus x times the square root of y equals 16

2007-12-17 10:45:10 · 2 answers · asked by danielle l 1 in Mathematics

2007-12-17 10:44:03 · 2 answers · asked by Anonymous in Engineering

give me the reasons why and if you have any information that is about mercury that would help to ....This is for a project......

thank you oh so very much!

2007-12-17 10:42:05 · 4 answers · asked by Anonymous in Astronomy & Space

douglas fir,red oak,poplar,or pine

2007-12-17 10:41:53 · 7 answers · asked by BOOM BOOM 1 in Botany

I have a CD of the images but the Dr. says it will be next week before I know the results. Can anyone read them and give me a clue?

2007-12-17 10:37:58 · 2 answers · asked by Nikki O 1 in Medicine

(continued) degrees W. longitude?

2007-12-17 10:37:38 · 6 answers · asked by ♥Ballin Babe ♥ 2 in Geography

A small ball 0.51 times as dense as water is dropped from a height of 14m above the surface of a smooth lake. Determine the maximum depth to which the ball sinks. Disregard any energy transferred during impact and sinking. Answer in meters.

2007-12-17 10:36:54 · 1 answers · asked by akanthasy 1 in Physics

2007-12-17 10:32:32 · 5 answers · asked by Anonymous in Mathematics

Why dose water fill the bottom of a glass, rather than cling to the sides?

2007-12-17 10:32:12 · 3 answers · asked by Anonymous in Earth Sciences & Geology

2007-12-17 10:29:50 · 5 answers · asked by jacob t 1 in Other - Alternative

We got the technology to go to other planets and we find a planet with a civilization with 14th century technology. How would react? What would we do?

2007-12-17 10:29:14 · 3 answers · asked by Hisutre G 1 in Astronomy & Space

random questions; plz answer at least one! thankz

2007-12-17 10:29:04 · 2 answers · asked by Anonymous in Biology

2007-12-17 10:27:39 · 2 answers · asked by Black Cat XIII 2 in Botany

2007-12-17 10:27:09 · 3 answers · asked by Anonymous in Earth Sciences & Geology

square root 4x+1 +3=0

2007-12-17 10:26:07 · 5 answers · asked by God Bless America!~ 4 in Mathematics

2007-12-17 10:23:05 · 24 answers · asked by Anonymous in Geography

Ok, i need help identifying and graphing linear equations and putting them in standard form. So can anyone give me a couple of answers and tell me how you got them???!!Please

the directions say to determine whether each equation is a linear equation,if so write the equation in standard form
1) 3x=5y

2) 6xy + 3x =4

3) 7y=2x + 5x

4)3/x +4/y =2

5) 7n - 8m =4 - 2m

Thank you to anyone who can help me!!

2007-12-17 10:22:50 · 6 answers · asked by ? 2 in Mathematics