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Science & Mathematics - 28 December 2007

[Selected]: All categories Science & Mathematics

Agriculture · Alternative · Astronomy & Space · Biology · Botany · Chemistry · Earth Sciences & Geology · Engineering · Geography · Mathematics · Medicine · Other - Science · Physics · Weather · Zoology

Lakes do not count.... thanks

2007-12-28 18:13:23 · 13 answers · asked by Anonymous in Geography

I mean which country is in the 1st time zone?

2007-12-28 18:09:46 · 14 answers · asked by Anonymous in Geography

please let me know soon

2007-12-28 17:54:33 · 9 answers · asked by AASTHA Lahiri 1 in Mathematics

2007-12-28 17:53:54 · 5 answers · asked by who........ 2 in Botany

I need help with this one problem
I don't just need the answer I help to figure out how to solve it step by step it would help me soooo much

5.0 grams magnesium metal is dropped into a solution of silver nitrate, forming silver metal and magnesium nitrate. How many grams of magnesium nitrate is formed?

I got this for my balanced equation: Mg+2 AgNO3---> 2Ag+Mg(NO3)2 is this a good place to start and if it is, where do I go from here?

Your help is apperciated!

2007-12-28 17:53:43 · 2 answers · asked by Anonymous in Chemistry

what does "(h,k) has the form (a, a+1) since it's on the line y = x + 1" mean?

2007-12-28 17:52:00 · 6 answers · asked by Silver L 1 in Mathematics

looking for a theory behind damage due to collisions in automobiles!!!!!
please suggest some sites or any source of information.

2007-12-28 17:45:53 · 13 answers · asked by Anonymous in Engineering

2007-12-28 17:43:36 · 6 answers · asked by UnknownD 6 in Mathematics

2007-12-28 17:42:53 · 3 answers · asked by Anonymous in Chemistry

I am trying to work out a calc problem and am stuck at solving for x. Right now I have
0=2cosx+2cos(2x)

I need to know what value for x results in 0; please explain how to do this.

2007-12-28 17:40:23 · 4 answers · asked by belizeable 4 in Mathematics

Can u help 4 my project??????

2007-12-28 17:39:25 · 5 answers · asked by abhi 1 in Mathematics

Please post your best, educated, intuitive answers. No flames, please.

2007-12-28 17:31:53 · 7 answers · asked by storymaster777 1 in Astronomy & Space

Could Kryptonite really kill Superman? Explain why or why not.

2007-12-28 17:25:51 · 9 answers · asked by Anonymous in Chemistry

my friend told me that the orbit of mars has distracted and the orbit of earth will also be. By that time the sun will set up at west and mars will come nearer to earth. And NASA hides this information because it gives benefit to muslims, is that true?

2007-12-28 17:18:38 · 30 answers · asked by minusazre 2 in Astronomy & Space

2007-12-28 17:18:13 · 11 answers · asked by Anonymous in Astronomy & Space

If i roll a die 6 times what r the chances i git one six? i knoe if u roll a doe once the chances of getting 6 is 1/6. And if u roll it 3 times the chances of gettin 6 are 3/6=1/2, rite? But if u roll it 6 times it ain't guaranteed u git a six, so what is the chances u get a 6 if u roll it 6 times?

2007-12-28 17:16:38 · 9 answers · asked by Charlie Brown 2 in Mathematics

I want to know what tools and parts I would need to make an electric vest. What would I need besides a multimeter to read and control amps to the heating element? What kind of wire would work best and how can I determine how long a wire I can run for the 9v battery? In other words what is the limit to how many feet of wire a 9v batt. will heat to produce a vest that will maintain enough warmth to be effective as winter wear for hunting from a stand. Some ideas about how to experiment with different ways to make a heating element that will achieve the premise of staying warm. How can I use resistors and or rheostats to control temp or a combination of both. This is something I want to experiment with and so the more diverse the ideas to reach the goal the better. Thanks in advance, I'm looking forward to the responses.

2007-12-28 17:12:43 · 3 answers · asked by ed m 2 in Engineering

2007-12-28 17:00:40 · 10 answers · asked by Maple Sugar 4 in Astronomy & Space

Give details and why you think so.

2007-12-28 16:49:36 · 36 answers · asked by Anonymous in Medicine

2007-12-28 16:35:05 · 1 answers · asked by Susmita 1 in Earth Sciences & Geology

1.In a standard deck of 52 cards,13 of the cards are diamonds.If two cards are drawn randomly without replacement, what is the probabilty that both cards are diamonds?

2.If the average of a and -5 is 10, whatis the value of a

3.find the sum of the measures of the interior angles of an octagon

2007-12-28 16:28:41 · 6 answers · asked by Anonymous in Mathematics

2007-12-28 16:14:38 · 4 answers · asked by seenivasagam n 1 in Earth Sciences & Geology

What is ultrasound therapy exactly. I had treatement with this for my knee injury when i was a teenager.
I have looked around on the internet and there is a lot of contradicting stuff on this form of therapy. Some say there is no conclusive evidence that it helps in the healing of the soft tissue.
Im considering using this type of therapy for my knee joint injury (cartilage repair) in conjuction with joint medication.

Is it worth it?
What is ultrasound supposed to do that helps cartilage/joint and bone tissue heal?

Where can i buy a personal ultrasound kit? are they any good anyway?

2007-12-28 16:09:45 · 2 answers · asked by Karl L 3 in Medicine

hey people i need more math help please help me again
if you want another ten points cause maybe on the last problem you helped me with ill pick you as best answer and if you give me a good enough answer on this question i might choose you as best answer also then you would have 20 points total but yeah please help me thanks

5=s/-7
9 p/-2<-5

2007-12-28 16:02:31 · 9 answers · asked by Serena Van der Woodsen 2 in Mathematics

What kind of spider is this?
Me and my wife have a 3 week old baby and we have been getting these spiders relatively frequently. They are very big much like a wolf spider but I know that they are not one of those. They have "muscular" legs unlike a wolf's thinner legs.
They are not afraid of people. We see them run, then they stop and we are able to get very close to observe and photograph before whacking it.
We are deathly afraid of spiders so please no one say that it is better to leave them alone. We basically live always keeping and eye out and worry about the baby.
Please identify it, and is it aggressive or poisonous???

Here is the link: http://share.shutterfly.com/action/welcome?sid=8SaOXDli4c0&emid=sharview&linkid=link3

2007-12-28 16:00:09 · 5 answers · asked by kevinw3364 2 in Zoology

2007-12-28 15:59:42 · 5 answers · asked by Anonymous in Botany

http://manuals.elenco.com/manuals/m-2666k.pdf
Anyone can tell me, the ground of this circuit is connect to where?
I think this circuit ground is not connect to negative terminal of 9V, just all ground connected together only, is true ?

2007-12-28 15:52:04 · 5 answers · asked by lwy 1 in Engineering

Anyone know any chemistry labs , which they have done in the past in their chemistry class?

2007-12-28 15:50:18 · 4 answers · asked by βεαuτy ♥ 4 in Chemistry