Science & Mathematics - 8 July 2007

It's an optimization problem for Calculus so derivates must used. Similar to related rates.

2007-07-08 06:45:11 · 2 answers · asked by Gills 1 in Mathematics

It just doesn't make sense to me...it would make more sense if the universe had always existed but I do keep in mind that the most intelligent scientific minds create these theories and have science to reinforce their views...but still...

2007-07-08 06:44:29 · 10 answers · asked by Anonymous in Other - Science

2007-07-08 06:42:48 · 7 answers · asked by tntrohman 1 in Mathematics

The boiling point of CH4 is lower than the boiling point of SiH4, whereas the boiling point of NH3 is higher than the boiling point of PH3.

All i have to work with is the periodic table, so is it even possible to explain this in terms of universal chemical properties

2007-07-08 06:41:16 · 7 answers · asked by Sean F 2 in Chemistry

2007-07-08 06:37:05 · 2 answers · asked by chica 2 in Engineering

A sample of gas at 38.0 degrees C occupies a volume of 2.97 L and exerts a pressure of 3.14 atm. The gas is heated to 118.0 degrees C and the volume is decreased to 1.04 L. Determine the new pressure exerted by the gas. (convert temperature to K before substituting in equation)

2007-07-08 06:35:59 · 4 answers · asked by Anonymous in Chemistry

2007-07-08 06:35:49 · 3 answers · asked by Shuji Ishikawa 2 in Chemistry

I was rewatching the Jericho episodes and I was wondering after a nuclear exchange how would you use the plants in your garden or any thing that was exposed to the radiation?

2007-07-08 06:33:22 · 4 answers · asked by Anonymous in Physics

the procedure to extract nitro glicerine from (nitro glicerin)soaps or artificial fertilizer

2007-07-08 06:33:21 · 2 answers · asked by Nestor 1 in Chemistry

A sample of gas in a 10.0 - L container exerts a pressure of 1.2 atm. Calculate the pressure exerted by the gas if the volume is changed to 15.0 L at constant temperature.

2007-07-08 06:31:22 · 4 answers · asked by Anonymous in Chemistry

If area of circle is 49pi, find circumference in terms of pi

2007-07-08 06:31:05 · 13 answers · asked by hpdc90 1 in Mathematics

Asked a question about mixed race and skin colour inheritance and someone gave a really good answer but said that after fertilization we don't know where all the genes are going to. Am I stupid or what but I thought that this is what the Human genome project had answered. I thought we knew what all 46 genes did. Am I getting mixed up between chromosomes and genes?

2007-07-08 06:23:25 · 8 answers · asked by purplepeace59 5 in Biology

What will happen if i put a UV light at air intake of my car?
Will it help combustion better, or just wasting my time?
Any help is very appreciated.....
Thanks......

2007-07-08 06:22:47 · 5 answers · asked by Afdhal Atiff Tan 2 in Physics

I want to have some small pieces from my motorbike 'coppered' but all the places I've looked into do things on a huge industrial scale. Don't wanna do it myself, either!!

2007-07-08 06:22:25 · 3 answers · asked by peter b 2 in Engineering

The situation:

A person has a subscription which allows them 3 licenses for 12 months @ $6500/12mo

After 3 months, they upgrade to a 5 licenses per 12-month plan @ $9000/12mo.

* They pay only the difference between the plans ($2500) to make a total of $9000 *

(the only 2 variables that change are the total/ price and the number of licenses)

How long does their plan now last?

Please SUPPLY THE EQUATION and NOT JUST THE ANSWER!

Bonus: Supply a formula to calculate what they'd pay to upgrade so their plan lasts EXACTLY 12 months.

2007-07-08 06:18:03 · 1 answers · asked by designer 1 in Mathematics

2007-07-08 06:16:54 · 13 answers · asked by hud1519 2 in Earth Sciences & Geology

2007-07-08 06:08:00 · 7 answers · asked by lilbit 1 in Medicine

2007-07-08 06:04:04 · 3 answers · asked by Anonymous in Mathematics

i just found a roach in my bathroom, and i want to know if there is a chance there are more roaches up there to? do they travel in packs or herds or something. Plus, i thought roaches liked dark places, there is lots of sunlight in my bathroom? any other info u can give me on roaches would be fantastic.

2007-07-08 06:03:50 · 7 answers · asked by -->[[Katie]]<-- 3 in Zoology

with a voltage follower, if the input draws a very small current and the output can provide a much larger current, where does the extra current come from? All my book says is that this is due to a very high input impedence and a very low output impedence. Can anybody explain this in more detail?

2007-07-08 06:01:24 · 3 answers · asked by eazylee369 4 in Mathematics

I DO NOT just want the answer. Please put your steps!

Factor the polynomial
48c5 + 168c4 + 147c3 completely.

A. 3c3(4c + 7)2
B. 3c2(4c + 7)2
C. 2c3(4c + 7)2
D. 4(5c + 7)2

2007-07-08 06:01:14 · 5 answers · asked by how's it going 1 in Mathematics

Use grouping to factor the polynomial
pg2 - pb2 - vg2 + vb2.

A. (g - b)(g - b)(p - v)
B. (g - b)(g - b)(p + v)
C. (g + b)(g + b)(p - v)
D. (g - b)(g + b)(p - v)

2007-07-08 05:57:52 · 7 answers · asked by how's it going 1 in Mathematics

For literary research, how much of the human body can be surgically removed, including limbs, organs, etc., and still live without life support?

2007-07-08 05:57:11 · 4 answers · asked by NInnyhammer 5 in Biology

Has anyone thought about whats going to happen next year? The powers that be reckon its going to take months to clear up the mess of the recent floods around the country, by the time clear up opps have done their job we"ll be back in the flood season again, only next time it will be worse and the year after that it will be worse still. what are these people going to do?

2007-07-08 05:52:52 · 13 answers · asked by banditfatti 1 in Earth Sciences & Geology

2007-07-08 05:51:35 · 6 answers · asked by Marcy S 1 in Astronomy & Space

2007-07-08 05:50:12 · 5 answers · asked by ROLANDO M 1 in Medicine

A mixed race couple have say 10 children, I'm guessing none of them will have blond hair and blue eyes and none ot them will have white, northern european type skin colour. Thinking of Mendel's original genetic experiments with red and white flowers, would that apply to human beings, that is offspring from a mixed race couple will always be some white and some black but in the same ration. When thinking of white people I mean someone with no other genetic mix in their ancestry if that is possible.

2007-07-08 05:50:02 · 14 answers · asked by purplepeace59 5 in Biology

2007-07-08 05:46:39 · 5 answers · asked by Anonymous in Physics

How do you find the height of a trapezoid that doesn't show the number of its height but sides and a 45 degree?

2007-07-08 05:41:31 · 2 answers · asked by hpdc90 1 in Mathematics

plss answer correctly if anyone of u know the answer

2007-07-08 05:40:40 · 4 answers · asked by miss 1 in Biology