Science & Mathematics - 12 December 2006

I know this may seem stupid, but I need to know how thermal energy is transferred in a double glazed window - how does the window keep the heat in the house, and also stop the cold air from getting in etc? I know the air trapped between the 2 panes is for insulation, I also know that the metal is good for radiation and conduction - (am i right?) but can someone explain this in physics. Thanks in advance.

2006-12-12 11:07:31 · 7 answers · asked by Anonymous in Physics

What are 2 advantages of preparing silage vs. shelled corn?

2006-12-12 11:06:17 · 2 answers · asked by Anonymous in Biology

I'm going to do a research paper on animal experiments and would like to know what people think about this topic. It would really help me. thank -you

2006-12-12 11:03:38 · 18 answers · asked by alma_ray2002 1 in Zoology

Hey guys, I need some help. I am stuck on this one :(

A circle lies in the third quadrant and touches both coordinate axes. If the length of the tangent from the point A(-4, 2) to the circle is 5, determine the equation of the circle.

2006-12-12 11:03:38 · 2 answers · asked by Meep, the Kind Wolf 3 in Mathematics

base of the building is 45 meters. How many meters high is the ledge?

2006-12-12 11:03:02 · 4 answers · asked by Min 1 in Mathematics

using only materials found there.

It's for a school project.

2006-12-12 11:02:46 · 5 answers · asked by Anonymous in Astronomy & Space

Thanks

2006-12-12 11:02:19 · 3 answers · asked by ostyman09 2 in Chemistry

in the U.S.A

2006-12-12 11:01:11 · 4 answers · asked by Timothy D 1 in Medicine

2006-12-12 11:00:01 · 1 answers · asked by Nowhere Man 6 in Chemistry

the science fair project is about love and I need help getting a question i can answer in like 2-3 days. any ideas yahoo buffs?

2006-12-12 10:59:45 · 2 answers · asked by marshall s 2 in Botany

2006-12-12 10:59:33 · 4 answers · asked by Anonymous in Earth Sciences & Geology

the percents intending to vote for the candiate by income level
low: 80%
midrange: 45%
high: 40%


Assume that 20 % of the population belongs to the low income level, 60% belong to the mid range income level, and 20 % belong to the high income level. Suppose a voter is selected at random.

What is the probability that a voter belongs to the high income level, given that the voter intends the vote for this candidate?
If possible please show me how you get the answer too! stats is a killer

The answer is .157 or 15.7%, I just don't know how to get that.

2006-12-12 10:59:10 · 1 answers · asked by Chickenpie 2 in Mathematics

2006-12-12 10:58:36 · 7 answers · asked by mikkinumberone@sbcglobal.net 1 in Medicine

2006-12-12 10:57:32 · 5 answers · asked by Anonymous in Zoology

I have to use that problem to answer this homework question and I really don't understand the questions. They are:
A. Write the six mole ratio that can be obtained from this equation
B. How many moles N2 can be formed from 2.7 mol NaN3
C. How many grams Na can be made from 31.1 g NaN3?
D. How many molecules N2 are made when 3.24 X 10 to the power of 23 atoms are formed?

My teacher said whoeve gets this question right will win a free homework pass for 3 weeks. I really need this because I am always made fun of and really would impress many if I got the correct answers. Help me out people if you can. Take care!

2006-12-12 10:57:15 · 1 answers · asked by Verlander16 2 in Chemistry

I NEED HELP SOMEONE HELP ME.

2006-12-12 10:57:07 · 4 answers · asked by Anonymous in Mathematics

If mercury's inertia suddenly became zero, what would happen to the planet?

please tell me the answer i'm confused

2006-12-12 10:56:11 · 3 answers · asked by kelvin 1 in Astronomy & Space

Repeat:

Additional Details
Excluding both other humans and pathogens. Only interested in outright killers.

Are Box Jellyfish the leaders or do the saltwater Crocs have the edge this year? Not forgetting venomous snakes, deadly spiders and wayward marsupials. Age limit no bar, if a paddling child annoys a Blue-ringed octopus or a shell collector gets impaled by a Cone Shell. Sting Rays are on one, but all things being equal they are the leaders unless the crocs have got at least two this year.


Do not have to include ten. Bees can count ???

2006-12-12 10:55:33 · 5 answers · asked by Perseus 3 in Zoology

cause you ussually need to breath out,and in.

2006-12-12 10:55:14 · 5 answers · asked by Anonymous in Biology

like whats 20% off of $50? or whats 20% off of $100?

2006-12-12 10:53:55 · 10 answers · asked by smilingontime 6 in Mathematics

Would putting a sealant of some kind over these toys help?

2006-12-12 10:53:25 · 5 answers · asked by cayusecrazy 2 in Chemistry

what is the record sise of mount etna and the 1906 san francisco earthquake and fire

2006-12-12 10:53:03 · 2 answers · asked by kryrcks444 2 in Earth Sciences & Geology

In DNA, what is the difference between replication and transcription?

Please help && Thank youu!

2006-12-12 10:52:45 · 3 answers · asked by Lina 4 in Biology

What is the volume of the solid delimited by the surfaces: z = x^2+y^2
and z = 2 - sqrt(x^2 + y^2)?

2006-12-12 10:52:12 · 4 answers · asked by Dude 1 in Mathematics

I need to know if the following animals are predator or prey.

roadrunner,gila monster,quail,cactus wren

2006-12-12 10:50:50 · 8 answers · asked by Darth Maul 1 in Zoology

a=xi-11j+13k
b=-11i+xj-7k
c=13i-7j+xk
Find the largest value of x for which the magnitude of the resultant of the three vectors is equal to 19.

2006-12-12 10:48:58 · 2 answers · asked by ozi 1 in Engineering

I was one's erigant i want the schools taught me about this subject till the 7th grade when a Geologist came to my sciece class and this topic came up.He said there was no concreate proof that glablal warming will happen and the people in favor of the idea keep changing the estamets based on when they will probably die so they wont be proven wroing in there life time. I fgeel that is not true science going by when you think you' die aqnd arnt most of thease guy's the one's pertedicted the next ice age woul happen by 1977 than changed it to glabal warming and changed the date.We need to oust sudo science and stop polotics from clowding facts. He also proseeded to rtell us 95% of polution is cause by nature not man and global tempiture's vare's judged bye volcanic activitey not 3rd world factories that emit quote green house gass's. I think we need to make Santa and his elf's more E.P.A complient if we want to stop climate change lol if it can be done.Another thing the news wont tell you

2006-12-12 10:47:56 · 9 answers · asked by Anonymous in Earth Sciences & Geology

helpp mee

2006-12-12 10:47:24 · 4 answers · asked by Anonymous in Mathematics

4/5 cube root of 125y^5..

2006-12-12 10:46:11 · 4 answers · asked by itsallforyou 2 in Mathematics

in science class we're learning about atoms and molecules and how atoms are so small they can't even be seen with a microscope, we have to solve the question
if atoms are too small to be seen , by anything, how can you split them in an atom bomb?
im supposed to use google, but i'm not good with it

2006-12-12 10:41:59 · 4 answers · asked by madame94 2 in Chemistry