Science & Mathematics - 12 August 2007

i have one that is twisted and the other has alot of 'hairs' on it..i live in Florida and with the heat wave i was just wondering should i bring them in or will they be o.k.???

2007-08-12 12:30:50 · 2 answers · asked by violated905 2 in Botany

I'm considering running an air conditioner

2007-08-12 12:26:51 · 4 answers · asked by M.K. 2 in Engineering

Would it be wise to take a few electrical classes from the physics program while im finishing up my degree? Our mechanical engineering degree program offers only 2 electrical classes that are mandatory, and they are basically the same class. I mean we take an electic circuits class in our junior year, then we take another electrical class the next year, and its basically the same stuff, but just a few more things added. Basically they dont offer alot.

Seeing how every mechanical system is powered electronicaly, what should i do to gain more knowledge in this area? Any books i should get, any good websites that explain simple to complex electrical stuff for mechanical engineers?

2007-08-12 12:24:20 · 7 answers · asked by Mike G 4 in Engineering

I want to know is Rain Water dirty my Friend and their dad say it is but i think it isn't i'm i right or are they???

2007-08-12 12:18:07 · 13 answers · asked by Anonymous in Weather

Amplified Light ,. such as high powered lasers do, exhibit physical properties akin to "Mass Particles". hmm how can something that has no mass be a candidate for future space rocket propulsion?.

2007-08-12 12:13:49 · 6 answers · asked by Joseph 2 in Physics

Do they? I mean if you keep them closed for a while.

2007-08-12 12:08:59 · 17 answers · asked by spazzist 2 in Biology

could it all clump together and form a planet someday? Don't laugh! I'm just wondering.

2007-08-12 12:06:10 · 5 answers · asked by anelectricguitar 2 in Astronomy & Space

2007-08-12 12:04:42 · 5 answers · asked by gagurl1224 1 in Mathematics

i have to calculate the standard entropy change (DeltaS^o) for the following equation:

4NH3(g) + 7O2(g) ---> 4NO2(g) + 6H2O(g)

and from the table in the book the values for the standard entropies are:

NH3(g) = 192.3 J/mol*K
O2(g) = 205.0
NO2(g) = 240.0
H2O(g) = 188.7

the answer in the back of the book for the problem is -112 J/K

no matter what i try i can't get the right answer :( does anyone know how to solve this?? thanks!!

2007-08-12 12:02:58 · 4 answers · asked by Anonymous in Chemistry

Is there any substance that I can put to ordinary paper so it neutralizes it and it won't deteriorate in time?

2007-08-12 12:02:49 · 2 answers · asked by nikki 1 in Chemistry

If so, does that mean scientists created life in the absence of a natural template?

Documentation of the generation of infectious virus in the absence of natural template:

http://www.sciencemag.org/cgi/content/abstract/297/5583/1016

http://www.nyas.org/ebriefreps/main.asp?intSubSectionID=553

http://www.foresight.org/nanodot/?p=1202

http://www.nature.com/msb/journal/v1/n1/full/msb4100028.html

About poliovirus:

http://en.wikipedia.org/wiki/Poliovirus

2007-08-12 12:01:34 · 7 answers · asked by Anonymous in Biology

2007-08-12 12:01:13 · 5 answers · asked by James G 1 in Geography

Also can dust devils colide into each other to make a bigger dust devil?

2007-08-12 11:57:16 · 6 answers · asked by Anonymous in Weather

pre-alebra...but i took it last year....

is it hard or is it easy as long as you study hard and listen good?

2007-08-12 11:55:31 · 12 answers · asked by Megan M 2 in Mathematics

i have a question, i would like to know if Mechanical engineers make money?..how much would they make in CA Los Angels( starting salary) and how does the salary increments work out?.. would they ever get promoted and make 6 figures?..please let me know ..im studying to be a ME ...only Experienced Engineers please.. Thanks

2007-08-12 11:52:08 · 17 answers · asked by slipknotiscool 2 in Engineering

From what I hear atropine is the antidote to poisoning through nerve agents. Datura is a common plant in that grows in north america that contains naturally occuring atropine but is normally toxic to ingest. However if atropine is not immediatly availible could you just pick a datura growing on the sidewalk and stop the nerve agent poisoning by eating it?

2007-08-12 11:51:11 · 2 answers · asked by Anonymous in Botany

When I was in the supermarket I went up to the girl with the red tee-shirt with the slogan 'here to help', so I asked for help. Unfortunately she couldn't answer the above question, so I thought I'd ask it here.
(she helped me find the teabags in aisle 3 though)

2007-08-12 11:48:33 · 14 answers · asked by Dave H 1 in Other - Science

Is it already in it's simplest form?

2007-08-12 11:46:53 · 5 answers · asked by Pretty_Trini_Rican 5 in Chemistry

of the collapse at the mine in Utah?

2007-08-12 11:45:53 · 1 answers · asked by Pretty_Trini_Rican 5 in Earth Sciences & Geology

I have made a leg attachment under my pants so that i have support but i cannot stay balanced. please help me with any ideals or suggestion. Thank you for your replies

2007-08-12 11:41:19 · 5 answers · asked by Lewis L 2 in Physics

2007-08-12 11:40:17 · 7 answers · asked by Natasha 1 in Zoology

If there is a supply of 15½ pounds of sunflower seeds, how many packages of seeds can be packed?
How many ounces of sunflower seeds will be left over? (16 oz. = 1 pound)

2007-08-12 11:38:24 · 3 answers · asked by smoothy 1 in Mathematics

5 people wrote postive integers on a cards. If the arithmetic mean of the five cards numbers is 15 what is the greatest integer that could be on one of the cards?

2007-08-12 11:36:43 · 11 answers · asked by rogue chedder 4 in Mathematics

It came to my attention recently while watching this documentary that i was unaware wether i actually believed in these UFO's. The evidence is there be it crop circles, probes and sightings however then again camera technology and technology as a whole has become quite vast in terms of what it is.
Can any one help me or give me some eye opening advice
Thanks

2007-08-12 11:35:55 · 6 answers · asked by Anonymous in Astronomy & Space

2007-08-12 11:31:10 · 10 answers · asked by rainbow 1 in Astronomy & Space

the answer is __ __ $__. Use the variable of x.

2007-08-12 11:28:15 · 4 answers · asked by sylvia s 1 in Mathematics

2007-08-12 11:27:51 · 6 answers · asked by C'est Comme Un Rêve 3 in Chemistry

2007-08-12 11:25:54 · 2 answers · asked by Anonymous in Physics

2007-08-12 11:20:00 · 8 answers · asked by michaelsoft_1 1 in Zoology

how fast would ion propulsion rocket be?
and how fast would you guess a fusion powered rocket be?

2007-08-12 11:17:16 · 6 answers · asked by evlangelo 2 in Astronomy & Space