Science & Mathematics - 25 January 2007

2007-01-25 01:05:45 · 7 answers · asked by Peace 2 in Engineering

2007-01-25 01:05:45 · 8 answers · asked by Alicat 6 in Weather

Could you explane to me how to get the answer for this?
Thanks for the help.

2007-01-25 01:02:39 · 1 answers · asked by Heavy Metal 3 in Chemistry

Could anyone help?
Thank you.

2007-01-25 01:01:31 · 4 answers · asked by theseraphslayer 1 in Chemistry

It seems that countries are becoming smaller and smaller these days. Are any countries growing in size?

2007-01-25 01:00:54 · 5 answers · asked by Lao Ban 1 in Geography

2007-01-25 01:00:09 · 20 answers · asked by Anonymous in Mathematics

I seem to remember that the very first output was of a lesser quality or was not enough to sell.

2007-01-25 00:59:58 · 1 answers · asked by Stan M 3 in Botany

2007-01-25 00:55:35 · 12 answers · asked by Anonymous in Astronomy & Space

I want to integrate a function: Int[ 1/(x-y)^2 dx dy ] I want to change x-y to a new variable z. Can I do this? And if so how do I change the variables I am integrating over? I guess dz = dx - dy, but this doesn't go back into the equation. Is this way possible or am going in the wrong direction? And if I am going in the wrong direction, how should I go about tackling this problem? My full integral is actually over at least 6 variables paired up like: Int[ 1/sqrt((x1-y1)^2+(x2-y2)^2+(x3-y3)^2) dx1 dx2 dx3 dy1 dy2 dy3] Any pointers greatfully received!

2007-01-25 00:54:12 · 3 answers · asked by CorneliusMurphy 2 in Mathematics

Does anyone know what the actual best way is?
Thanks!

2007-01-25 00:52:41 · 3 answers · asked by theseraphslayer 1 in Chemistry

2007-01-25 00:50:34 · 33 answers · asked by Alicat 6 in Weather

There was a link on Digg.com where it showed pictures of a frozen tidal wave. I was just wondering if it was possible or where those pictures of some glacier in the arctic or something. The link is http://www.harkvideos.com/arctic.htm

2007-01-25 00:49:44 · 6 answers · asked by Scott 1 in Earth Sciences & Geology

2007-01-25 00:48:12 · 2 answers · asked by MachoMan 4 in Chemistry

I want to know this because I have to take Motrin for my pain and I need to have food in my stomach for that. The amoxicillin works best on an empty stomach. Therefore, I was wondering how long should I wait to eat something in order to take the Motrin. Please...hurry...sinusitis...head...really...really...hurts.....

2007-01-25 00:46:48 · 3 answers · asked by duped4thelasttime 3 in Medicine

I am curious as to how current the public is on their math skills. These are some examples of Algebra Questions from an entrance exam for a junior college.

1. solve. - -114/16

2. 3/5 - 11/12

3. What is the square root of 12?

4. 24 / 3 squared / 8-5 - (-5)

5. x/4 -6 =1

6. 2x -5x=9

7. 1/2 (2x-6y +8)

8. 9n-3 (2n-1)=15

9. The sum of two numbers is fifteen. one less than three times the smaller is equal to the larger. Find the two numbers

10. Find the cost per ounce of a sunscreen made from 100 ox of a lotion that cost 2.50 per ounce and 50 oz of a lotion that cost 4.00 per ounce.

I will post answers to everyone who answers, so you can see how well you did! If you get everyone of these correct, you would be able to pass directly into college level math classes and not require Learning Support. Have Fun!

2007-01-25 00:42:58 · 11 answers · asked by noggle4 2 in Mathematics

2007-01-25 00:42:37 · 14 answers · asked by Anonymous in Mathematics

Make a rectangle ABCD where AB & CD are the longer sides (lenghts)of the rectangle ABCD.Connect the diagonal AC.Extend BC upto E & connect ED such that the triangle ABE is a right angled triangle.Connect ED.Here if CD is given in integer values then we will not get AE in integer values if ED is having integer values or if AE is having integer values then we will not get ED in integer values.
Can this be proved wrong?

2007-01-25 00:41:53 · 3 answers · asked by rajesh bhowmick 2 in Mathematics

answer me at december.sathi@yahoo.co.in

2007-01-25 00:40:11 · 12 answers · asked by Anonymous in Earth Sciences & Geology

Is it okay to eat chicken cooked two days ago i.e. say Tuesday evening it was cooked and to eat it on Thursday evening?. The chicken was put into the fridge once it was cold after cooking. I am unsure in terms of bacteria etc that may produce on it since its been cooked. thanks for your response in advance!

2007-01-25 00:38:17 · 14 answers · asked by Sars 1 in Biology

2007-01-25 00:36:23 · 2 answers · asked by Anonymous in Earth Sciences & Geology

I've recently had this nagging question bouncing around in my head. What is time? Is it an illusion? Or is it existent, like a boundary where events can flow?

2007-01-25 00:32:34 · 13 answers · asked by Anonymous in Astronomy & Space

2007-01-25 00:30:28 · 9 answers · asked by michaelrox94@verizon.net 1 in Astronomy & Space

a cage holds two litters of rats. one litter has 3 female and 4 male. and other litter has two female and 6 male. a random selection of two rats is made. find as fraction the prob that the two rats are
i) from the same litter.
ii) of the same sex)
iii) the same litter and of the same sex
iv) from the same litter give that they are the same sex

Been trying to work this out for a while and i get the wrong results :((

2007-01-25 00:30:08 · 2 answers · asked by Anonymous in Mathematics

I need to know when the tide on the Thames by London Bridge is going to be at its lowest this weekend... I found a chart, but I don't know how to change what I read into knowing when the beach will be above water...

2007-01-25 00:29:15 · 3 answers · asked by tituseast 2 in Geography

In your opinion or based on your belief, how do you say the world began. Was it the big bang, or was it genesis.

Was it something else.

2007-01-25 00:28:49 · 8 answers · asked by ? 3 in Astronomy & Space

like with being sedated , what does it feel like? Do you just sleep for hours and hours?

2007-01-25 00:27:26 · 7 answers · asked by Nitza 1 in Medicine

was it seismic waves etc? please help.ü

2007-01-25 00:26:29 · 5 answers · asked by ais.ü 2 in Earth Sciences & Geology

I want to say Waxing Gibbous.. is that right? Is that 1st or 3rd quarter? So confused.

2007-01-25 00:25:17 · 2 answers · asked by Anonymous in Astronomy & Space

Actually the discussion is important because ,we are not sure enough that where from the universe came indeed. At that time in Big Bang singularty moment, universe had a temperature of 10000billion degree celcius and a density of 1000,000 billions tonns of water density & had a controversial physics and mathematics that can explain every thing that evry thing happened from that time 0.0001 second after the time zero up to present day. According to us the Bing bang model is acceptable after 10-32seconds of the Big bang singularity. What hapened before 10~32second? The next thing is that whether time was started from the Big bang moment or Time was flowing and Big bang like events happened only once? or many such Big bang like events happened in universe?

2007-01-25 00:24:20 · 9 answers · asked by Prof. Pranab Bhattacharya 2 in Astronomy & Space

seen a trick where whiskey and water change glasses is it true

2007-01-25 00:19:10 · 13 answers · asked by delsboy 1 in Physics