Science & Mathematics - 16 September 2006

Does dopler shift have something to do with sound and light?

2006-09-16 10:49:04 · 5 answers · asked by justin time 2 in Other - Science

2006-09-16 10:46:55 · 7 answers · asked by Anonymous in Astronomy & Space

2006-09-16 10:46:40 · 7 answers · asked by Amy_S13 2 in Astronomy & Space

My daughters father and I are doing a paternity test. Since he lives in NY and I in NH, we are doing a by mail one through a company called GeneTree. How reliable are these tests. They reccomend that you send in the mothers DNA as well...how come?

2006-09-16 10:45:25 · 3 answers · asked by patti_jim_reynolds 3 in Medicine

2006-09-16 10:42:21 · 9 answers · asked by lexontt 2 in Medicine

or what is the biology of thought?

2006-09-16 10:42:15 · 5 answers · asked by Paul B 1 in Biology

I read an answer from Sakhalin Island, Russian Far East (north-east of Japan).

2006-09-16 10:41:13 · 21 answers · asked by Anonymous in Geography

equation:
(2/3) (1-2x) - (3/2x) + (5/6x) "greater than or equal to" (2x-1) / (3) + 1

would i have to distribute the 2/3 first and mulitply by 3 then solve?
would the interval notation be (-infinity, -1/3] ?
thanks for the help.

2006-09-16 10:39:16 · 4 answers · asked by shih rips 6 in Mathematics

I would be grateful to show me how to work this out!

2006-09-16 10:37:31 · 2 answers · asked by cornishmaid 4 in Physics

2006-09-16 10:37:25 · 6 answers · asked by Linda 2 in Other - Science

Let's suppose the electric field in some region is found to be E=k(r^3)r^-----> "r-hat", in spherical coordinates where k is a constant. How do you find the charge density, p, and the total charge containted in a sphere of radius R, centered at the origin?

2006-09-16 10:35:38 · 4 answers · asked by chica1012 2 in Physics

suppose that a square picture frame has sides that vary between 9.9 in and 10.1 in. what range of values is possible for the perimeter P of the picture frame? and how do i express this using a three-part inequality?

i know the perimeter is 39.6 for the 9.9" and 40.4 in for the 10.1". do i need to calcute the 40 in perimeter for sides of 10"?
thanks for the help.

2006-09-16 10:32:29 · 3 answers · asked by shih rips 6 in Mathematics

this is a worldview question

2006-09-16 10:29:52 · 5 answers · asked by Linda 2 in Other - Science

Here is the question in detail: Three charges form an equilateral triangle of side a. At one vertex is a charge +2q; at the other two vertices are charges -q. The triangle is oriented with the charge 2q on the positive x axis and both charges -q on the y axis. a) Find an expression for the electric field on the x axis, in the approximation x>>a. b) give an expression for the magnitude of the triangle's dipole moment. Answers: a) E=2(3)^½kqa/x^3 i, E and i are vectors b) p=(3)^½qa

2006-09-16 10:27:36 · 1 answers · asked by thomthum2000 2 in Physics

2006-09-16 10:25:55 · 7 answers · asked by Immanoob 1 in Mathematics

2006-09-16 10:25:18 · 9 answers · asked by flipboiinak 1 in Engineering

2006-09-16 10:21:45 · 4 answers · asked by M P 1 in Biology

2006-09-16 10:12:11 · 15 answers · asked by ireland_wins_quidditch_world_cup 2 in Astronomy & Space

2006-09-16 10:04:42 · 7 answers · asked by isrukind1 1 in Mathematics

I think it may either be K = 1 or K = 2

2006-09-16 10:00:08 · 14 answers · asked by Anonymous in Mathematics

2006-09-16 09:59:39 · 4 answers · asked by arcangelle03 1 in Other - Science

This has been going on for a two months. I've had two periods that were regular and normal so I know I'm not pregnant. The first time I threw up I thought it was just because I abused my body by eating junk food the day before and having some alcohol and running around all day on little sleep. I'm 32. When I wake up I don't like to eat right away. I like to wake up and get moving first. But then I start feeling weak and I feel my blood sugar drop. Then my stomach feels sick and I can't stand the thought of food and I throw up. I went to the doctor and had fasting blood work done and I didn't have diabetes at time. That was a few months ago. What could be wrong with me?

2006-09-16 09:57:13 · 7 answers · asked by icu812 3 in Medicine

2006-09-16 09:56:28 · 21 answers · asked by cute girlz 2 in Earth Sciences & Geology

I find advanced trigonometry [*extremely*] easy and I find advanced algebra [*extremely*] easy and I find *all* 'high level' mathematics easy [*extremely*]. Now, 'simple' addition and subtraction, now that I find hard.

Please please just tell me I'm normal.

I spose I'm not; I'll just have to help society another way. Say something nice.

2006-09-16 09:50:57 · 17 answers · asked by Put_ya_mitts_up 4 in Mathematics

I am doing my homework but this one problem I've done 3 times always comes out wrong.

3x-5y+z=8
4y-z=10
7x+y=4

I get y= -11.4
x=2.2
z=55.6

I know I'am doing it wrong but what am I doing wrong?

2006-09-16 09:46:14 · 14 answers · asked by kky 3 in Mathematics

Calculate the following using the correct number of significant figures.
a. (1.54 times 10^58)(3.5 times 10^60)
b. (7.9 times 10^34) / (8.32 times 10^23)

2006-09-16 09:45:44 · 3 answers · asked by youngnlovely991 1 in Chemistry

I need ideas for my Feasibility Topic in my major?

2006-09-16 09:44:50 · 2 answers · asked by 4weeksman 2 in Biology

Suppose C(r) is the total cost of paying off a car loan borrowed at an annual interest rate of r%. What is the practical meaning of C'(r)?

2006-09-16 09:40:32 · 4 answers · asked by ? 1 in Mathematics

how do you come up with atleast 6 values for a cubic expression?

The expression is an^3+bn^2+cn+d

2006-09-16 09:39:26 · 3 answers · asked by BENNETH[[98]] 2 in Mathematics

2006-09-16 09:38:32 · 8 answers · asked by estefania3_1 1 in Chemistry