Science & Mathematics - 25 January 2007

What is this meaning and how does it relate to chemical reactions?
Please answer my question in a few minutes!!

2007-01-25 15:54:44 · 7 answers · asked by Anonymous in Chemistry

.... solid, liquid, gas, or plasma?

2007-01-25 15:54:10 · 6 answers · asked by Anonymous in Chemistry

The term came up and I wonder how amino acids can have a mutation.

2007-01-25 15:51:52 · 3 answers · asked by An Agent of Chaos 5 in Biology

I know it`s a sill y question, but I need the answer.
PS:
only sensible answers are entertained.

2007-01-25 15:49:36 · 8 answers · asked by Sweetos 1 in Biology

Which is the best chance to win?
Game one - has a 1 out of 4 chance to win a prize and you get 12 chances on one ticket.
Game two- has a 1 out of 3 chance to win and you get 10 chances on one ticket.
The cost per ticket is exactly the same.
So which would be the best chance to win?

2007-01-25 15:46:54 · 5 answers · asked by Anonymous in Mathematics

i have 6m^2 this is geometry

2007-01-25 15:46:06 · 2 answers · asked by princess 1 in Engineering

Translate to a system of equations and solve. please show steps.

2007-01-25 15:45:33 · 4 answers · asked by Amy B 1 in Mathematics

like what do you guys think about it? im sposed to write 500 words on it and i only have 364 =P so please help!

2007-01-25 15:43:56 · 6 answers · asked by christie m. 2 in Zoology

in the movie "what the bleep do we know" i learn that electrons repel each other. so i guess were not really touching anything? my bio teacher tells us this but i dont really understand how and why this happens. can someone help me understand this better?

2007-01-25 15:43:50 · 2 answers · asked by onefastda9 1 in Chemistry

The parents are both heterozygous in all genes being BbHhEeRr. I'm having a difficult time with the genotype for this problem. Any help would be really awesome!!! I've already set up the Punnet Square, but I'm stuck! Thank you, thank you, thank you!!!

2007-01-25 15:42:25 · 2 answers · asked by Anonymous in Biology

8cm/s=____ meters/hour

???

2007-01-25 15:41:47 · 5 answers · asked by Cutie P 2 in Mathematics

2007-01-25 15:39:40 · 2 answers · asked by larry h 1 in Mathematics

A bowl contains green, red, and white marbles in the ratio 6:3:2. Based on this information, what does the ratio 5:11 represent?

plz help, and thank u!
??????///

2007-01-25 15:39:19 · 5 answers · asked by blah 6 in Mathematics

I am looking for the answer to the above question the question is can you tell how far away a storm is by counting the seconds between the flashes of lighting and the clap of thunder if the answer is yes how does this theory work

2007-01-25 15:37:07 · 17 answers · asked by hotmommatimes3 1 in Weather

used in centrifugal pumps.

2007-01-25 15:37:05 · 7 answers · asked by sandeep d 1 in Engineering

up to 100

2007-01-25 15:34:53 · 3 answers · asked by s.l.g/uyujghjghjguguytyghjg 1 in Mathematics

2007-01-25 15:33:39 · 3 answers · asked by savannah_banana03 1 in Mathematics

lol i dont get these heres the link to the pic http://i52.photobucket.com/albums/g40/rivasamer/01-25-2007090129PM.jpg

2007-01-25 15:31:19 · 1 answers · asked by rivasamer 1 in Mathematics

A Dot product question. How to solve it? What is the proces of solving it? With the dot product...

2007-01-25 15:28:52 · 2 answers · asked by Anonymous in Mathematics

A hollow tube of length L, open at both ends as shown above, is held in midair. A tuning fork with a frequency fo vibrates at one end of the tube and causes the air in the tube to vibrate at its fundamental frequency. Express your answer in terms of L and fo.

(a.) Determine the wavelength of the sound.

(b.) Determine the speed of sound in the air inside the tube.

(c.) Determine the next higher frequency at which this air column would resonate.


The tube is submerged in a large, graduated cylinder filled with water. The tube is slowly raised out of the water and the same tuning fork, vibrating with frequency fo, is held a fixed distance from the top of the tube.

(d.) Determine the height, h, of the tube above the water when the air column resonates for the first time. Express your answer in terms of L.

2007-01-25 15:28:35 · 2 answers · asked by Scratch22 1 in Physics

One thousand kg of natural gas at 100 bar (10^5 N/m^2) and 255 K is stored in a tank. If the pressure, p, specific volume, v, and temperature, T, of the gas are related by the following expressed:

p = [(5.18 x 10^-3)T/(v-0.002668)] - (8.91 x 10^-3)/(v^2)

where v is in m^3/kg, T is in K, and p is in bar, determine the volume of the tank in m^3.

2007-01-25 15:28:15 · 3 answers · asked by Anonymous in Mathematics

1.... Is this problem prime or can it be factored out more.

1. 3f^2 + 8f - 35 THX

2007-01-25 15:23:12 · 3 answers · asked by Anthon V 1 in Mathematics

i have 6m^2

2007-01-25 15:23:02 · 1 answers · asked by princess 1 in Engineering

2007-01-25 15:21:46 · 3 answers · asked by Envy Me 1 in Mathematics

How do you find the relative abundance and the isotopic mass of an element? Zirconium has four naturally occuring isotopes.
90 = amu 89.905 and % 51.45
91 = amu 90.906 and % 11.22
92 = amu 91.905 and % 17.15
94 = amu ?? and % ??

I need to know the relative abundance and the isotopic mass and how to reach the answer.

I know that the equation is set up like this:
91.224 = 89.905(.5145) + 90.906(.1122) + 91.905(.17.15) + x(1-.5145 + .1122 + .1715).
I just don't understand how to do the math. I keep coming up with different answers every time. I haven't had algebra for two years so I'm not sure what to do with the x.

2007-01-25 15:20:32 · 2 answers · asked by shane200388 1 in Chemistry

I am taking O-chem right now and need to remember some of the basic stuff from general chemistry such as finding molarity, pH, etc etc.
Unfortunately, I took general chemistry freshman year and I am now a senior, so everything is a little rusty.

Any basic websites with formulas/tips etc will be greatly appreciated. Best one gets the 10 points!

2007-01-25 15:17:51 · 1 answers · asked by D 7 in Chemistry

Please show all steps and work i am very confused thx in advance.. heres the problem....person who shows good amt. of work and correct answer gets the pnts.

If the length and width of Rectangle A are 10 percent less and 30 percent less, respectively, than the length and width of Rectangle B, the area of A is what Percent smaller than the area of B. Thank you

2007-01-25 15:17:18 · 5 answers · asked by Anthony V 1 in Mathematics

I have a pet walking stick. He/she needs a cage that has mesh sides. I'm not very good at making things. Any ideas on where to get a small enclosure of this sort? This walking stick is going to be about 8 inches long as an adult. Mesh needs to be small since the WS will lay eggs and newborn WS are VERY tiny.