Science & Mathematics - 6 October 2006

Consider the Roswell incident.
1. Would you choose a US Airforce Base as the best place to approach Earth?
2. If you designed a craft cabaple of interplanetary travel, would you also figure a way to land it without crashing?

2006-10-06 01:26:48 · 7 answers · asked by Anonymous in Other - Science

I'm doing a project for school and was wondering a good website to find silicia zinc, nepheline syenite, mica clacite, barite, flourite,and mestone selenium ore. Does anyone know a really good website that willl show those pictures of those minerals and name them?

2006-10-06 01:25:46 · 10 answers · asked by Brian's Babe 2 in Earth Sciences & Geology

2: As additional salt is added to a dilute solution of salt, the boiling point of the solution ________
increases

decreases because salt tends to lower the boiling point of a solution

remains the same

none of the above




4: A sample of clay suspended in water is distilled. As distillation proceeds, the weight of the clay in the distilling flask _________
increases

decreases

remains the same because only the liquid is distilled off

none of the above


5: A sample of washing soda is placed in a beaker and exposed to the air. As the time of exposure to air increases, the weight of the contents of the beaker _____________
increases

decreases, the water contained in the soda evaporates

remains the same

none of the above


6: When a crystal of a salt is added to a supersaturated solution of the salt the number of crystals produced_____________
increase because adding additional crystal causes them to fall out of solution

decreases

remains the same

none of the above


7: As more solid sugar dissolves in water, the freezing point of the solution ______________
increases

decreases because by adding more and more sugar water in the solution is less

remains the same

none of the above

2006-10-06 01:22:44 · 2 answers · asked by Anonymous in Chemistry

2006-10-06 01:21:59 · 15 answers · asked by heffalump 1 in Other - Science

2006-10-06 01:21:51 · 25 answers · asked by Swampy_Bogtrotter 4 in Medicine

2006-10-06 01:13:19 · 10 answers · asked by Anonymous in Zoology

2006-10-06 01:08:53 · 3 answers · asked by Anonymous in Zoology

I buy normal washing up liquid and have done so for over 10 years now. While I buy the a well known brand I have never bothered paying the extra for the anti bacterial stuff. The reason is that a while ago I was told by a biologist that the anionic surfactants found in all washing up liquid is antibacterial anyway so the new ones labelled as antibacterial are little more than a marketing ploy. Is this true?

2006-10-06 00:57:42 · 15 answers · asked by PETER F 3 in Biology

If a planes wing (aerofoil) is designed to produce lift upwards, when planes fly upside down why to are they not forced quickly downwards and crash?

2006-10-06 00:56:06 · 11 answers · asked by Daveo 1 in Engineering

2006-10-06 00:50:40 · 11 answers · asked by Edres 1 in Medicine

Of in het Nederlands: kan iemand mij vertellen wat droge ether is?

2006-10-06 00:50:08 · 2 answers · asked by Johan 2 in Chemistry

you have a procss, you do the expirement, get data. you choose a model for that proces. you have do find the parameters.
i need one method to be explained, the changed differential method for parameter finding. with the use of neldeal mead nonlinear regression fo optimization, and runge kutta for numerical solving of ODJ.
i have the algoritam in front of me and i just don't get it. what is it tha you do, and in what order to get the solutions, the parameters.

thnx

2006-10-06 00:49:30 · 1 answers · asked by mamamacka 1 in Mathematics

2006-10-06 00:46:31 · 9 answers · asked by karnasaa 1 in Astronomy & Space

I read on wikipedia that they have 50 strains of bacteria, but my husband says they also have plague in their mouth. Doesn't hurt them, but hurts those they bite. Any exotic types out there know if the plague thing is true?

2006-10-06 00:38:13 · 7 answers · asked by krautlover2u 2 in Biology

2006-10-06 00:34:08 · 3 answers · asked by Anonymous in Astronomy & Space

2006-10-06 00:27:56 · 8 answers · asked by Anonymous in Medicine

When i'm at work I clean my mug, plate and cutlery by rinsing (or soaking depending on how longs it been left) in water to remove the food then rinsing with boiling water. Is this sufficient to clean them i.e to kill and harmfull bacteria or am i risking a nasty stomach upset? I always thought that boiling water would kill all known bacteria but someone suggested that it won't.

2006-10-06 00:24:14 · 28 answers · asked by PETER F 3 in Biology

solve this plz:

1/2+1/2+1/2+1/2+ ... = ?

2006-10-06 00:21:38 · 16 answers · asked by MaK 1 in Mathematics

I found in an information given by NASA that,Plants dont need gravity.Is it right!.
Another one:.... The moon's 28 day day-night cycle is unsupportable for plants & isn't comfortable for humans either.Is that right!!!...What does it mean & How da rotation effets us & plants.

2006-10-06 00:20:45 · 6 answers · asked by preity 1 in Earth Sciences & Geology

http://new.photos.yahoo.com/dendweller143/album/576460762319255874#page1

2006-10-06 00:18:17 · 5 answers · asked by Anonymous in Geography

2006-10-06 00:14:23 · 7 answers · asked by Anonymous in Earth Sciences & Geology

I do because if we were made why can there not be other living life forms in the universe??

2006-10-06 00:13:20 · 22 answers · asked by LLL H =] 2 in Astronomy & Space

integrate dx/ ((4*x^2)+(25)), the a=5 and b= positive infinity...i try to solve this a came up the result is in the trigonometric substitution the only problem how can I substitute the limits of 5 and infinity ??

integrate dx/(2x + 2)^1/2....can i use the general power formula to this question?

thanks

2006-10-06 00:06:30 · 6 answers · asked by ice_cream_chico11 1 in Mathematics

2006-10-06 00:04:22 · 11 answers · asked by Curious Person 2 in Astronomy & Space

a man is in the moon.he sees earth in zenith(above his head in the sky).how much does the earth set take for this man?
1-24 hour 2- 6 hour 3-27.3 days 4-29.5 days 5-earth never sets in the moon`s sky.

2006-10-06 00:02:36 · 4 answers · asked by gigi_sunflower 1 in Astronomy & Space

2006-10-06 00:01:35 · 4 answers · asked by JOEG 1 in Physics