Science & Mathematics - 9 January 2007

2007-01-09 12:17:13 · 2 answers · asked by fadedrose1955_1945 1 in Geography

Can you name ways to prove two lines are parallel? Best answer gets 12 pts, and everybody gets 2! lol :-) thanks sooo much for answering!!!

2007-01-09 12:16:44 · 14 answers · asked by ♫ singin_gurl1200 ♫ 3 in Mathematics

The released hydrogen would rise to the top of the atmosphere and be blown away from the Earth by the solar wind.

2007-01-09 12:14:59 · 6 answers · asked by Anonymous in Physics

2007-01-09 12:12:42 · 1 answers · asked by dee 1 in Weather

2007-01-09 12:12:23 · 11 answers · asked by Anonymous in Physics

A 12 foot board needs to be cut into 3 pieces that are in a ratio of 3 to 2 to 1. What is the lenght of the longest piece???

2007-01-09 12:11:31 · 8 answers · asked by K3LL! 1 in Mathematics

2007-01-09 12:11:02 · 8 answers · asked by yashicaevans2004 1 in Mathematics

2007-01-09 12:10:46 · 7 answers · asked by nekokitsunegrrl 1 in Zoology

2007-01-09 12:09:57 · 1 answers · asked by Right here Right now 1 in Biology

The spectator ions in the reaction ZnCl2 + 2LiOH ---> LiCl + Zn(OH)2 are..
The spectator ions in the reaction KOH + HCl ---> PbI2 + KNO3 are..
The spectator ions in the reaction Pb(NO3)2 + KI --> PbI2 + KNO3 are...
The spectator ions in the reaction ZnI2 +NaOH --> NaI + Zn(OH)2 are...

2007-01-09 12:09:51 · 2 answers · asked by Samantha Jo 3 in Chemistry

2007-01-09 12:08:52 · 1 answers · asked by Right here Right now 1 in Biology

Do you know of any sites where I can find stories and pictures of survival during the 1906 earthquake. Thanks!!!

2007-01-09 12:07:49 · 3 answers · asked by Anonymous in Earth Sciences & Geology

2007-01-09 12:07:03 · 2 answers · asked by Right here Right now 1 in Biology

My friend says it is +7 but i think it is -5, it is review from grade 7 but i can't remember the formula, can some one tell me please, also if possble (the below questions)

(-24) - (-32)= -56 (guess)
(+2) - (-4)= -6 (guess)

2007-01-09 12:05:38 · 16 answers · asked by Anonymous in Mathematics

solve the euqtion: -x +3 = 7x+8

perform the indicated operation: ( 5-2i) - 2( 3+i)

find the inverse of the relation: y = 2x-4

Thanks for the help!!!!!

2007-01-09 12:05:16 · 6 answers · asked by Mia16 3 in Mathematics

example1: Atlanta is getting pretty popular and people are all living there. But no one's moving to Birmingham, AL or Mobile, AL.
example2: Washington, DC has people crowding the VA suburbs, but no one is moving to Baltimore(Baltimore actually dropped in population)
example3: Some people are just copying me and moving to the Tampa bay area and soon it's gonna be overcrowded like Atlanta and DC. But hey aren't moving the Magic city(miami) or the Ville(Jacksonville).
example4: People are moving to Phoenix or Scottsdale but not to Santa Fe, Salt Lake city, or Pueblo. They insist on being in AZ.

2007-01-09 12:05:02 · 10 answers · asked by Cuddly Lez 6 in Geography

There are a total of 20 chickens and cows in a barnyard.
The animals have 52 legs in all. How many of each animal are there? Also, show how to use linear combinations to describe the situation. Find the correct solution.

2007-01-09 12:04:52 · 5 answers · asked by Anonymous in Mathematics

2007-01-09 12:02:13 · 5 answers · asked by yashicaevans2004 1 in Mathematics

I have one 6 years old son who is so interested in how to build bridges, tunnels, skyscrapers etc, and also fastinates about fast trains especially Maglev, and I am running out of ideas of constructions, experiments and all the TV programs I could provide. Could anyone give me suggestions where to find more challenges or interesting places like museums or exhibition centers (local or overseas ones) that can inspire us. Thank you.

2007-01-09 12:01:34 · 3 answers · asked by J A 1 in Engineering

2007-01-09 12:01:09 · 18 answers · asked by Meggg 1 in Mathematics

My son is doing a science project where he is making a foam board phonograph. He'll spin a record with a hat pin connected to the foam board which will cause the vibrations to travel so that we can hear the music. The instructions say to use a hat pin.

I went to 2 craft stores to no avail. I do have corsage pins but nobody seems to know for sure if these can work to replace the hat pin. My questions are is a hat pin thicker than other pins - (maybe so that it can transfer the vibrations better)? And is it less sharp than a corsage pin? Did they not suggest corsage pins possibly because the sharp tip might scratch the record?

How much difference is there between the hat and corsage pin?
Thanks!

2007-01-09 11:59:36 · 2 answers · asked by Red Birds 2 in Engineering

2007-01-09 11:58:49 · 6 answers · asked by Sonya M 1 in Chemistry

2007-01-09 11:57:21 · 5 answers · asked by Anonymous in Astronomy & Space

2007-01-09 11:54:25 · 7 answers · asked by Dutch V 2 in Astronomy & Space

2007-01-09 11:53:53 · 9 answers · asked by ieramanit 1 in Zoology

please also include wat type of cell and a description of the process.

2007-01-09 11:52:29 · 3 answers · asked by Emily Z 2 in Biology

The three points are (1,4), (-3,32), (4,25). Find an equation that passes throught all three points. I need an explanation, not just an answer. I need to understand the concept.

2007-01-09 11:51:43 · 5 answers · asked by the smart kid 2 in Mathematics

for some reason i cant crack this one:

-8x = 4(x + 5) + 2x

you're solving for X. btw, the answer is not 1.4 because when I plugged it in it didnt work.

2007-01-09 11:48:40 · 21 answers · asked by funkypolak17 3 in Mathematics

Hi Folks,
OK a jar of jam tells me that it is 454gm. That is a pound, then.
My half ounce of baccy is 12.5g , though.
The petrol station wisely, for them, gives me a price per litre.
I may be a bit stubborn, but I have to go, Ah! that is so much a gallon, then!
Yet If I go to the butchers for a bit of minced steak, I must ask for so many pounds or ounces of it, otherwise he does not comprehend. Bless.
It must be awful for those at school, as in this "transition" my sons are aquainted with both.
"How long is a metre, dad ?" - er, about 39 inches, son.
As for coulombs, amperes, volts, at least we have some agreement.
Some standardisation for future generations, would you think ?
Happy new cubic metres on your gas bill.
(Oh - converted to Kwh, which used to be horsepower)
Bob.

2007-01-09 11:47:28 · 8 answers · asked by Bob the Boat 6 in Other - Science

What happens during meiosis that ultimately results in a defect characterized by the deletion of chromosomes?

2007-01-09 11:46:04 · 1 answers · asked by CyberKnight 2 in Biology