Science & Mathematics - 20 January 2007

2007-01-20 11:31:53 · 14 answers · asked by Anonymous in Mathematics

[ (X^3) - (2X^2) + 5X - 10 ] / [ (X^4) - (13X^2) }

I am suppose to find the limit as X approches 2.

2007-01-20 11:30:41 · 4 answers · asked by A.A. 2 in Mathematics

I was reading an article by someone from New Scientist the other day and he suggested that; well if I can remember rightly; that when things are compressed to as much as they can be, very tightly, then they expand. So this is what the universe could have been. Now this experiment could be done by us on a small scale but not yet as we do not have the capability, but it is not impossible. Imagine if we put together all the minerals, gases etc that make up our universe and pact it tightly on a smaller scale, we could literally create a mini universe.

Now this is the exciting part that has had me thinking for days! Imagine if somewhere, they did do this, they had the capability to do the experiment. What if we are the experiment. What if there are literally billions of these experiments somewhere. I find it very interesting, but if the person who did the experiment was huge, could he just end our universe by emptying us down his sink!?

Anyone have any comments or further thoughts?

2007-01-20 11:30:38 · 15 answers · asked by chrismyarse 2 in Astronomy & Space

I need to find out at least 17 different cell organelles in an animal cell for school for a project.

2007-01-20 11:27:09 · 10 answers · asked by Anonymous in Biology

2007-01-20 11:24:35 · 14 answers · asked by elizabeth h 1 in Other - Science

A Chromosomes
B genes
C traits
D mutations

2007-01-20 11:22:55 · 3 answers · asked by kimberly n 1 in Biology

2007-01-20 11:22:51 · 3 answers · asked by bananasplit1744 2 in Astronomy & Space

Or is that out of the realm of science? In theory, it can be possible but in reality is this true? Is there any advances on technology for that purpose?

2007-01-20 11:22:42 · 8 answers · asked by Passion 3 in Physics

2007-01-20 11:21:24 · 11 answers · asked by Anonymous in Astronomy & Space

2007-01-20 11:21:18 · 5 answers · asked by dantistryfiliya 2 in Earth Sciences & Geology

This is my last question for my homework! help me!

The hieght in feet H of an object thrown upwards from the ground as a function of the time t in seconds since being released is given by

h=-16t+128t

Determine the time in seconds required for the object to reach a hieght of 40 feet on it's way up?

Okay, basically, I don't have a clue what this is asking. If you can explain how you got your answer, i'll give you the best answer

2007-01-20 11:20:16 · 7 answers · asked by gunteruga 1 in Mathematics

Under coulomb's law, F=(1/(4π*permittivity of free space))((Q1*Q2)/r^2).
What are the units for F, Q1, Q2, r^2 and the permittivity of free space. And can someone explain the law to me. Will appreciate it very much. Thx in advance.

2007-01-20 11:20:00 · 1 answers · asked by Death Blade 2 in Physics

2007-01-20 11:19:03 · 2 answers · asked by Anonymous in Chemistry

How the hell do I solve this lol

Find all values of K such that the equation x^2+kx+79=0

has exactly one root!!

Please explain how you got your answer and i'll give you the best answer

2007-01-20 11:17:27 · 7 answers · asked by gunteruga 1 in Mathematics

Write a balanced chemical equation for the reaction between the sodium hydroxide and magnesium sulfate to form sodium sulfate and magnesium hydroxide.

2007-01-20 11:17:13 · 1 answers · asked by Ballerina 5 in Chemistry

I have a right triangle, the adjacent side is 12 units long, the hypotenuse is 13 units long and the opposite side is 5 units long.
The adj is line segment AC, the hyp is line seg AB and the opp is line seg BC. Angle C is a 90 degree angle, I need to figure out either angle B or A, preferably A. Can somebody PLEASE HELP ME!!!?!????!?!!!!!! IF you get the angle for A, can you explain how you got it?
HELP!!!!!

2007-01-20 11:16:30 · 4 answers · asked by skybluefrank 3 in Mathematics

I welcome any random tid bits of information or other sorces of information about the HLC.

2007-01-20 11:15:52 · 4 answers · asked by magpiesmn 6 in Physics

A light wave has a frequency of 4.90 x 1014 cycles per second. What is the wavelength?

2007-01-20 11:13:36 · 5 answers · asked by dreamerloverlibra 2 in Physics

2007-01-20 11:12:59 · 11 answers · asked by Nick 2 in Botany

1. Find the sqrt12/81
2. sqrt18/49
3. simplify. sqrt5-5sqrt5
4. simplify. 3sqrt7(sqrt3+4sqrt7
5.Rewrite the expression with a rational denominator. sqrt2/sqrt5.
6. Find the product: (-5sqrt11)(-5+sqrt11).
Find the product: (-2 sqrt s-2 sqrt t)(-2sqrt s+2 sqrt t).
7. Rewrite the expression with a rational denominator. sqrt3/sqrt10.
8. Simplify: sqrt5/sqrt7.
9. Simplify: 4+sqrt48/4
10. Simplify: 3+sqrt27/3.

2007-01-20 11:11:59 · 17 answers · asked by Anonymous in Mathematics

I have 2 questions for my Study Guide for Chemistry.

Is the Balanced Equation of Beryllium Carbonte + Sulfuric Acid:
BeCO2 + H2SO4 --> H2Co3 + BeSO4 ?

And how many atoms of carbon are present in 5.3 L of CO2?
5.3/22.4 = # Mols of CO2, but how do I figure out atoms (I know how to convert to molecules)?

2007-01-20 11:11:18 · 3 answers · asked by Just Me 2 in Chemistry

2007-01-20 11:09:45 · 17 answers · asked by Anonymous in Earth Sciences & Geology

What causes it? Every day, all day.. at work.. (yes there is carpet, but I don't drag my feet when I walk), every single time, no matter what shoes I have on, I get shocked when I touch things like doorknobs, filing cabinets, copy machine.. even other people. There are some times when I can even see the arc when I am putting a key in the keylatch... This is every day.. and it don't seem to happen to anybody else. I remember as a kid, we would drag our feet on the carpet and touch someone just to shock them.. but this is different because I am actually trying hard not to drag my feet.. what is up with that? Any input???

2007-01-20 11:08:21 · 9 answers · asked by tootsie38 4 in Other - Science

2007-01-20 11:06:11 · 5 answers · asked by swamy d 1 in Medicine

2007-01-20 11:05:28 · 2 answers · asked by swamy d 1 in Medicine

I need the AREA of an irregular shaped surface, all I know is that the perimeter is 966 ' , and I need the square footage of the AREA and the formula to do it,I already did 2 different ways but the result comes out almost 16,000' off from one another.

2007-01-20 11:04:30 · 5 answers · asked by mr_mariote76 2 in Engineering

Note that the point value of each question is given in parentheses

6. (5) Derive the identity for sin 3x in terms of sin x

7. (5) Using the double angle formula, find sin 120 degrees

2007-01-20 11:04:15 · 2 answers · asked by student 1 in Mathematics

2007-01-20 11:02:53 · 3 answers · asked by Myda C 2 in Mathematics

12322.8/348.8

How do you divide those without a Calculator?

I alway's used to use a Calculator and never my head, so now I have to take a major test that say's I can't use one. So I gotta brush up on the basics. Please help. I don't want the answer, I just need to know "How".

2007-01-20 11:02:29 · 7 answers · asked by Anonymous in Mathematics

Note that the point value of each question is given in parentheses


3. (10) Using exact values , find:
a. tan 105°
b. sin 255°


4. (5) Find cos (x+y) when both x and y are acute angles and sin x = 3/5 and sin y= 5/13.

2007-01-20 11:01:21 · 4 answers · asked by student 1 in Mathematics