Science & Mathematics - 12 November 2006

Why is the Oort cloud of comets spherically distributed, while the Kuiper belt lies in the plane of the solar system?

2006-11-12 08:51:50 · 3 answers · asked by hunnk33 1 in Astronomy & Space

Which of the following statements is true?
1. Electronegativity is a measure of the ten-
dency of an atom to lose electrons.
2. As electron a±nity increases (becomes
increasingly negative), electronegativity de-
creases.
3. When ionization energy increases, elec-
tronegativity increases.
4. Ionic radii are always larger than atomic radii for the same element.
5. Electron a±nity is a measure of the
amount of energy needed to remove an elec-
tron from an atom.



also this one

Use electron-dot notation to demonstrate
the formation of an ionic compound involving
the elements Na and S.

2006-11-12 08:50:02 · 2 answers · asked by dojorno5 2 in Chemistry

2006-11-12 08:49:43 · 6 answers · asked by althepal78 2 in Astronomy & Space

1) what is the exact number of coulon?
2) what is the function of electric energy(Joul- I think )?
thankx :)

2006-11-12 08:49:14 · 2 answers · asked by gilparsay 1 in Physics

too much acid, too little acid, too much antacid or too much base?

2006-11-12 08:48:12 · 6 answers · asked by Lexi U 1 in Chemistry

strongly acidic, strongly basic, weakly acidic, or weakly basic

2006-11-12 08:45:57 · 7 answers · asked by Lexi U 1 in Chemistry

I know that this pill is an acne treatment, But if I take it, is it also a birth control to prevent you from getting pregnant?!?!

2006-11-12 08:45:21 · 3 answers · asked by Tonella's Baby 2 in Medicine

2006-11-12 08:44:04 · 12 answers · asked by Anonymous in Astronomy & Space

2006-11-12 08:43:39 · 1 answers · asked by ?????? ? 1 in Zoology

2006-11-12 08:42:48 · 1 answers · asked by ?????? ? 1 in Zoology

2006-11-12 08:41:32 · 11 answers · asked by hunnk33 1 in Astronomy & Space

Seriosly I want to know!!

2006-11-12 08:41:04 · 7 answers · asked by Joe Kickass 1 in Astronomy & Space

2006-11-12 08:39:26 · 9 answers · asked by vivie g 1 in Geography

this has to with mitosis

2006-11-12 08:39:07 · 2 answers · asked by pamela 1 in Botany

The heat of vaporization for 1.0 mol of water at 100 degreesC and 1.0atm is 40.6 kJ/mol. Calculate delta S for the process H2O(l) --> H2O(g) at 100 degrees C.

2006-11-12 08:38:21 · 1 answers · asked by ChEMIsTrY ChICkiE 1 in Chemistry

I'm confused by this... maybe someone else can get it.

Use seperation of variables to solve the initial value problem


dy/dx = cos(x) * e^(y+sin x)

x = 0 , y = 0

2006-11-12 08:37:09 · 3 answers · asked by Steven Procter 2 in Mathematics

Alternative genes for a trait are known as what?

2006-11-12 08:33:55 · 3 answers · asked by Marina C 1 in Biology

about vision sence how does the eye work but not v broad i want such to take an idea and about colour blindness the causes and diagnoses of it

2006-11-12 08:33:55 · 1 answers · asked by heba mansour 1 in Medicine

For example, some turkeys are fed only corn, and some pigs are fed only oats. Does what they eat affect the taste, texture, and quality of their meat? And if so, how? Any resourses would be appreciated.

2006-11-12 08:33:01 · 6 answers · asked by Anonymous in Zoology

The oxygen 1- anion O- has how many total
electrons and how many valence electrons?

2006-11-12 08:32:38 · 3 answers · asked by dojorno5 2 in Chemistry

Ms. Jordon has been given a loan of 2500. for 1 year, if the intersest charged is $275, what is the interest rate on the loan?

2006-11-12 08:32:35 · 6 answers · asked by Anonymous in Mathematics

2006-11-12 08:31:15 · 10 answers · asked by popcorn22 1 in Chemistry

2006-11-12 08:30:12 · 9 answers · asked by RACHEL D 1 in Biology

Find f'(x), and no, don't just use your calculator, I can do that too.
Please show your work, because I can't seem to get this.

f(x) = ln ( 7x + (49x^2 - 16)^(1/2))

2006-11-12 08:30:07 · 4 answers · asked by Steven Procter 2 in Mathematics

2006-11-12 08:29:48 · 12 answers · asked by tyk 1 in Physics

A) Parrafin wax should be more souluble in a non polar solvent
B>Ethanol should be more soluble in a non polar sovent than a polar solvent
C>Parrafin wax should be more soluble in a polar solvent than a non polar solvent
D>Ethanol should be more soluble in a polar sovent than a non polar solvent
E. Parrafin wax is likely to be soluble in ethanol

2006-11-12 08:27:43 · 4 answers · asked by coolpuffin 2 in Chemistry

2006-11-12 08:26:53 · 5 answers · asked by cellmom2003 1 in Zoology

complete solution

2006-11-12 08:26:24 · 3 answers · asked by sara a 1 in Chemistry

only def
inition

2006-11-12 08:23:23 · 10 answers · asked by prashant t 1 in Biology

Problem: Half of the students who ate lunch at Mesa on Friday brought their lunch and did not buy anything at the cafeteria. Out of the remaining half who bought something, ¾ bought pizza. Out of the pizza bought, ½ was cheese and ¼ was pepperoni. The remaining 15 pizzas were vegetarian. How many students were eating lunch at Mesa that Friday?

2006-11-12 08:22:02 · 12 answers · asked by Anonymous in Mathematics