Science & Mathematics - 29 December 2006

do we break the atmosphere everytime,a shuttle takeoff but if globalwarnin is makin the atmosphere thin, y isn't the gas/ no oxygen space comin

2006-12-29 11:15:06 · 6 answers · asked by BlackIce Mikel 3 in Physics

If my test negative test for a particular disease was 97% accurate, and (considering the fact that my exposure is unknown) the disease is only carried by about 0.6% percent of the population, what does that make my overall percentage chance that I am not infected by this disease?

2006-12-29 11:14:45 · 3 answers · asked by Jay 1 in Medicine

"By turning the can upside down you trapped a lower volume of gas (because some escaped)and a reduced air pressure compared with what is on the outside (normal atmospheric pressure). "
Which law would explain this better: Charles law or Boyles law?

[Boyle's Law- For a given amount of a gas at a constant temperature, the volume is inversely proportional to the temperature.

Charles' Law- For a given amount of a gas at a constant pressure, the volume is directly proportional to the temperature.]

2006-12-29 11:12:07 · 6 answers · asked by Epitaph 2 in Chemistry

hi
i'm a fresh man student of civil eng.
i need a text on dams and geology for engineering geology of about 7 to 10 pages
where can i find it ?

2006-12-29 11:10:24 · 4 answers · asked by winglessbirdincage 1 in Earth Sciences & Geology

What happened to the BILLIONS$$$$$ in budget surplus at the end President Clintons 8 years?

2006-12-29 11:08:39 · 2 answers · asked by Anonymous in Biology

2006-12-29 11:03:04 · 11 answers · asked by Eman T 1 in Geography

Sorry; this is a pure scientific question and only the real scientific answers will be read

2006-12-29 11:01:09 · 6 answers · asked by nectar 2 in Biology

Watching this episode about a rapist. He has leukemia and they said something about after he had a blood transfusion his DNA has been different (from when he was previously in the system)

2006-12-29 11:00:18 · 7 answers · asked by uthinkso 3 in Biology

Complete the word equation
Then write the balanced equation.
27. calcium + oxygen >>>>
28. copper(II) carbonate>>>>
29. aluminum + hydrochloric acid >>>>
30. potassium iodide + chlorine >>>>
31. barium chloride + sodium sulfate >>>>
32. copper + silver nitrate >>>> copper(II) nitrate +
33. barium hydroxide + sulfuric acid>>>>
34. zinc sulfate + ammonium sulfide>>>>
35. sodium + water >>>>
36. magnesium + sulfuric acid >>>>
37. Mercury(II) oxide >>>>

2006-12-29 10:45:09 · 5 answers · asked by truckin_90 2 in Chemistry

Why have the Darwinein finches NEVER evolved but only adaptations of the beak from diet are observable---finches continue to be finches after all these years?

2006-12-29 10:44:04 · 4 answers · asked by Anonymous in Biology

Will there be a physical or chemical change?
Endothermic or Exothermic? Please explain and share with me your sources.

2006-12-29 10:42:55 · 9 answers · asked by JEANDB 2 in Chemistry

Hi. I have my 8th grade exit project due wednsday and i jsut really need a picture of a meteor or a meteior that shows like the layers and whats it is made of or im gonna fail. Please help me.

2006-12-29 10:31:22 · 2 answers · asked by Anonymous in Astronomy & Space

2006-12-29 10:30:46 · 12 answers · asked by sammye 1 in Geography

True

False

2006-12-29 10:30:12 · 4 answers · asked by jay 1 in Biology

water

light

carbon dioxide

circadian rhythms

2006-12-29 10:28:32 · 4 answers · asked by jay 1 in Biology

vascular tissues

protected gametes

alternation of genreations

archegonium

mitosis

2006-12-29 10:26:14 · 4 answers · asked by Jason D 1 in Biology

It seems to me that so many people are looking for a simple answer to homework. WHY??? Do the research and you'll be that much better off in the end. Am I alone on this? You get what you put in! Yeah it might be easy to get the answer from people, and for some things I think that asking questions is great, but if you're trying to simply do homework try the text book, or (heaven forbid) try to figure it out yourself. Am I way off course here??

2006-12-29 10:21:36 · 11 answers · asked by Anonymous in Botany

2006-12-29 10:21:20 · 5 answers · asked by kverch123 1 in Chemistry

why must we use rockets to get into space, could a jumbo jet (or similar) be converted and used to fly upward in spirals, carrying its own fuel/air mixture for once above useable oxygen

2006-12-29 10:20:33 · 14 answers · asked by Anonymous in Physics

Which pair of number has 36 as the LCM ?
a - 3 , 6
b- 3 , 12
c- 6 , 9
d- 9 , 12

2006-12-29 10:19:29 · 12 answers · asked by cuong c 1 in Mathematics

If there was a tornado warning issued for your area , you live in 3rd floor apartment in a un-inclosed complex (meaning their are no interior halls) and you also have an infant ...what should you do ?

2006-12-29 10:12:29 · 16 answers · asked by Anonymous in Weather

I've been hearing about the FDA possible approving meat & milk from cloned animals such as cow and pigs to be sold in stores in a year or so.
What exactly is cloned meat & milk, how is this process done? I don't really understand how they are doing this cloning.
Why would you want to clone cows & pigs? They are not rare. Why not eat/drink what's natural, why do people have to try to repeat the exact same animal, why not just let it give birth instead of cloning it?
To me eating & drinking cloned meat & milk sounds crazy - it seems morally wrong, unsafe, unnatural, & just plain ridiculous. What's the point?

2006-12-29 10:11:38 · 10 answers · asked by tanner 7 in Biology

Machine A produces pencils at a constant rate of 9,000 pencils per hour and machine B produces pencils at a rate of 7000 pencils per hour. If the two machines together must produce 100,000 pencils and if each machine can operate for at most 8 hours, what is the least amount of time in hours that B must operate?

----
I have a pretty long convoluded way of solving this, but I'm hoping someone can show me something less time consuming. Thanks!

2006-12-29 10:09:34 · 8 answers · asked by Julia P 1 in Mathematics

Like a cow and a bull, tom and a queen, doe and a buck, etc ,etc....

2006-12-29 10:08:48 · 5 answers · asked by lolwat 3 in Zoology

Of the 200 members of a certain association, each member who speaks German also speaks English, and 70 of the members speak only Spanish. If no members speak all 3 languages, how many members speak two of the three languages?

(1) 60 of the members speak only English.
(2) 20 of the members do not speak any of the three languages.

You must use both statements to solve. Please help!

2006-12-29 10:07:38 · 5 answers · asked by Julia P 1 in Mathematics

i have a report due for distilation and i am doing an experiment, ditilling
H2O (WATER) NaCl (salt)
OH (alchhol) + H2O (water)
OH + NaCl
I wanted to know the equation for these since i need to type in the equation in the report.
THANKSSSS A LOTTT FOR THOSE WHO HELP ME OUT

2006-12-29 10:05:38 · 6 answers · asked by Anonymous in Chemistry

For any positive integer n, the length of n is defined as the number of prime factors whose product is n. For example, the length of 75 is 3, since 75 = 3 x 5 x 5. How many two-digit positive integers have length 6?

a. none
b. 1
c. 2
d. 3
e. 4

2006-12-29 10:05:37 · 3 answers · asked by Julia P 1 in Mathematics

is this a good science problem to do a science project/report/exit project about?

problem: what are different kinds of stars?

2006-12-29 10:03:59 · 4 answers · asked by Eee 1 in Earth Sciences & Geology

In the xy-coordinate plane, line L and K intersect at point (4,3). Is the product of their slopes negative?

(1) The product of the x-intercepts of lines L and K is positive
(2) The product of the y-intercepts of lines L and K is negative

You must use both statements to find the answer. I have no idea how to solve this, please help!

Thank you!

2006-12-29 10:03:04 · 6 answers · asked by Julia P 1 in Mathematics

I see people comment that they hate the metric system. If we had a race, who thinks they could calculate how many inches in 12 miles faster than I could calculate how many centimeters in 12 kilometers? I'd like to start a poll.

Other examples:
What's the weight of 1 gallon of water and mass of 4 liters of water?
What's the dimensions of a cube with volume of a gallon - or 8 liters?
How many tablespoons in 2/3 cup - or milliliters in 1/2 liter?

Can any metric haters justify their preference for a more difficult system?

2006-12-29 10:01:25 · 12 answers · asked by sojsail 7 in Physics