Science & Mathematics - 8 December 2007

A. H3PO4
B. NaNO3
C. CH3COOH AND NaCH3COO
D. HCl AND NaOH

2007-12-08 16:14:32 · 2 answers · asked by Allie C 2 in Chemistry

There is an ongoing debate who found the first Electronic Voice Phenomnea (e.v.p.) there are many opinons, theories and thoughts ? What is the first thing you find online for research or tell me if you know im curious to see what you guys find out

Ryan ~Paranormal Researcher/Investigator~
theprosonline.com

2007-12-08 16:13:36 · 9 answers · asked by teamhuntingevidenceofparanormal 2 in Paranormal Phenomena

Find the center, vertices, and foci of the ellipse.

9x to the 2nd power + 25y to the second power + 162x + 300y +1404 = 0

I'm not sure how to show work for this problem. Help and work shown is greatly appreciated. Thanks.

2007-12-08 16:12:52 · 1 answers · asked by Anonymous in Mathematics

2007-12-08 16:11:36 · 6 answers · asked by Anonymous in Weather

how to do this : probles with steps.....pleas HELP thank you

1. 15a^2/25a^4 2. 32h^3/48h^2 3. 12n^4/21n^6

4.3x-6/6 5. x^2+7x-8/x2+6x-7 5. 10+3x-x^2/x^2-4x-5

2007-12-08 16:09:33 · 1 answers · asked by oscar_14_osr 1 in Mathematics

Honeybees
Ants
Wasps
Butterflies

2007-12-08 16:09:24 · 15 answers · asked by Anonymous in Biology

Do they have an increased electrical potential or a magnetic polarization.

2007-12-08 16:09:05 · 2 answers · asked by Ibredd 7 in Weather

a) has a fixed arrangement of particles
b) has a definite shape
c) has large distances between particles
d) has definite volume
e) is a good conductor of heat and electricity

2007-12-08 16:06:30 · 6 answers · asked by Loiman 1 in Chemistry

What is the molarity of the acetic acid solution
CH3COOH(aq)+KOH(aq)=CH3COOK(aq)+H2O (l)

2007-12-08 16:06:02 · 2 answers · asked by Allie C 2 in Chemistry

specify different versions of some traits constitute a pair of:

a. complementary chromosomes.
b. heterologous chromosomes.
c. homologous chromosomes.
d. polyploid chromosomes.
e. None of the choices are correct.

2007-12-08 16:05:34 · 3 answers · asked by Anonymous in Biology

2007-12-08 16:04:37 · 4 answers · asked by Anonymous in Earth Sciences & Geology

1. solve for x collect x's on left side .. the solution should be presented with x first, then correct inequality symbol, then the number .

2 (x+1)>(s/b greater or equal to sign) 12

2x+2>(greater to and equal sign) 12
2x+2-2(greater to and equal sign) 12+2
2x>(or equal sign) 14


another one solve for x
4x+3-13x-7<(3-4x)


how do i find the slopes?

find the slope of the line that passes through the points
(3,-5) and (-5,-6)



i have no clue what they want here

translate to an algebraic statement, do not solve
three times the sum of a number and seven yields the same result as the twice the same number decreased by four ???????

2007-12-08 16:03:30 · 5 answers · asked by Maggie L 1 in Mathematics

a potter's wheel moves from rest to an angular speed of 0.20 rev/s in 30.0 s. Assuming constant angular acceleration, what is its angular acceleration in rad/s^2?

2007-12-08 15:56:51 · 2 answers · asked by Anonymous in Physics

2007-12-08 15:54:35 · 10 answers · asked by Anonymous in Astronomy & Space

can someone help me answer that what i got is to vague i think...



... this is what i have so far...
In sexual reproduction half the genetic information from each parent cell is passed to the offspring.
All information for the structure and chemistry of an organism is contained within this sequence of genes.


and thts supposed to get me two marks :S :( help me please :)

2007-12-08 15:53:22 · 2 answers · asked by Michael J 1 in Biology

Four guys are lined up in front of a firing squad:

http://s226.photobucket.com/albums/dd11/jackphotos123/?action=view¤t=FiringSquadRiddle.jpg

They are told this:
"Two of you guys are wearing red hats and two of you guys are wearing blue hats. If you can tell me what color hat you are wearing and why, I'll let you walk away and live."

After a few seconds, one guy raises his and with the answer. Which guy was it and how did he know?

2007-12-08 15:49:34 · 7 answers · asked by Anonymous in Physics

can you please show me the process...
assuming all angles are positive acute angles transform the left side of the equation into the right side
sec β - cos β / cos β = tan^2 β

(sec β minus cos β over cos β equals tan squared β)

2007-12-08 15:49:16 · 5 answers · asked by pirlo 1 in Mathematics

2007-12-08 15:48:40 · 9 answers · asked by guessinglady 1 in Mathematics

Note: This question is in the biology category for a reason.

2007-12-08 15:48:13 · 10 answers · asked by jf 1 in Biology

2007-12-08 15:47:46 · 6 answers · asked by Gonzo 1 in Astronomy & Space

A force of 15.78 N is applied tangentially to a wheel of radius 0.340 m and gives rise to an angular acceleration of 1.20 rad/s^2. Calculate the rotational inertia of the wheel.

2007-12-08 15:43:20 · 2 answers · asked by hmm 1 in Physics

Suppose that Earth grew to its present size in 1 million years through the accretion of particles averaging 100g each. On the average, how many particles did Earth capture per second?

Hint* Appendix A will tell you the Earth's mass.

2007-12-08 15:42:52 · 5 answers · asked by Allie 1 in Astronomy & Space

Find the vertex, the focus, and the directrix of the parabola.

y to the 2nd power + 4x - 4y + 0 = 0

I'm not sure if my work is correct, so shown work would be great. Thanks.

2007-12-08 15:40:45 · 1 answers · asked by v2507456 1 in Mathematics

What is the answer to h+2/3<2-2/3

2/3 is a fraction.

2007-12-08 15:40:09 · 8 answers · asked by .Heather. 3 in Mathematics

_2m+1___=__3m-2__
3 5
i wasn' sure how to type in these kind of fractions but thats what they r suppost to be LOL

2007-12-08 15:40:05 · 5 answers · asked by Anonymous in Mathematics

I grew up on a large property in south-west Queensland. About 28 years ago, my brother and I were riding our motorbikes at night, and drove past a deserted house on the property. Hanging over one of the window sills was a largish, hairy animal, about 4 feet long. It definitely was no known Australian animal. I had lived there all my life and seen every large animal that lived in that area. This animal looked something like a sloth. I'd have to say it was really scary looking, and we actually just mentioned it to each and took off. I really wish we'd stayed for a better look now.
Has anyone ever heard of any undiscovered animal that looks anything like this? The properties are big where I grew up....in the tens of thousands of acres and bigger, so this thing may be a very rare animal or maybe an escapee from somewhere, although from where I couldn't imagine.
Anyone heard any whispers of an animal like this? Thanks in advance to anyone who answers.

2007-12-08 15:37:38 · 2 answers · asked by Anonymous in Zoology

emits an electron to become a proton? Do the quarks somehow change their charge?

2007-12-08 15:31:23 · 3 answers · asked by Anonymous in Physics

I always wondered it goes by so fast...why!?

2007-12-08 15:26:18 · 5 answers · asked by Anonymous in Earth Sciences & Geology

Write the equation of the line in standard form that passes through (5,-2) and (-3,14).

2007-12-08 15:23:09 · 4 answers · asked by andyauyong 1 in Mathematics

A solid concrete block weighs 174 N and is resting on the ground. Its dimensions are 0.400 m 0.200 m 0.100 m. A number of identical blocks are then stacked on top of this one. What is the smallest number of whole blocks (including the one on the ground) that can be stacked, so that their weight creates a pressure of at least one atmosphere on the ground beneath the first block? (Hint: First decide which face of the brick is in contact with the ground.)

2007-12-08 15:20:48 · 2 answers · asked by koetjet24 1 in Physics