Science & Mathematics - 29 October 2006

What would the electric field look like for a negatively charged object near a conducting sheet?
In other words, if I have a negatively charged pipe brough close to a piece of aluminum what would the field look like between these two objects?

2006-10-29 10:27:58 · 2 answers · asked by crazed1511 1 in Physics

what is it like where you are right now? any snow? I am in wisconsin. No snow by me, but it is starting to get a little cold.

2006-10-29 10:25:57 · 30 answers · asked by Anonymous in Weather

2006-10-29 10:25:55 · 3 answers · asked by Catherine D 1 in Chemistry

I hate it.

2006-10-29 10:24:34 · 5 answers · asked by Anonymous in Medicine

Can't find it, been looking for hours...
Please cite source

2006-10-29 10:23:54 · 7 answers · asked by HMhm 4 in Medicine

In Triangle ABC., angle C is (7x-3) degrees and segment AB = (3x+5)mm.
Part a. What value of x would make Triangle ABC.equilateral?
Part b. What is the perimeter or sum of the lengths of the sides of the equilateral triangle? Be sure to include the unit of measure in your solution.

2006-10-29 10:22:44 · 4 answers · asked by Anonymous in Mathematics

Calculate the standard enthalpy of formation of gaseous diborane.( B2H6) given the following data.

4B(s) + 3O (g)----> 2B2O3 (s) H= -2509.1 kj
2H2(g) + O2(g) ----> 2H2O (l) H = -571.7 kj
B2H6 (g) + 3O2( g) ---> B2O3(s) + 3H2O (l) H= -2147.5 kj

2006-10-29 10:22:39 · 1 answers · asked by Catherine D 1 in Chemistry

The question I am trying to answer is "What percentage of water is in the compound CuSO4 5H2O?" Now I know to get percentage I need to figure out Molar mass of H2O/Molar mass of CuSO4 5H2O and multiply by 100, but when I try to figure out the molar mass of water do I just get the MM of H20 or do I multiply water by the coefficient 5 because of the 5H20? Please help me..........I got the answer 14.04%, is that correct.

2006-10-29 10:20:41 · 1 answers · asked by ♥ Arvizu16 3 in Chemistry

write a balanced equation for :
a sample of solid potassium chlorate is heated
and
rubidium metal reacts with hydrogen gas.

Also:
C2H4 + ICl5 --> 2 CH2Cl2 + ICl

Given :
ICl5 : -472.5 kj/mol
CH2Cl2 : -403.4 kj/mol
ICl : 135.0 kj/mol

so how ami supposed to find the the delta H using those
all in gas

2006-10-29 10:19:39 · 2 answers · asked by jinternazionale 2 in Chemistry

The resting cell has a membrane potential which is negative. This membrane potential is a result of:
A.Diffusion of negative ions into the cell
B.The difference between 2 K+ pimped in and 3 NA+ pumped out.
C.Osmosis of 3 negative ions in and 2 positive ions out.
D. The filtration of glucose and other large molecules
E. Cell eating( Phagocytosis) and drinking (pinocytosis)

10 pts to correct answer.

2006-10-29 10:19:24 · 2 answers · asked by Entrepreneur 3 in Biology

I am not saying this to be stupid or sound clueless but i'm not even out of highschool and have never heard the true reason. thanks if you could help.

2006-10-29 10:17:47 · 11 answers · asked by chynna cat sunflower 2 in Physics

2006-10-29 10:17:33 · 1 answers · asked by aggies_2011 2 in Engineering

The temperature outside is -6 degrees at 5 pm. If the temperature drops 2 degrees each hour, what will the temperature be at 1 am in the morning?

2006-10-29 10:15:43 · 4 answers · asked by Anonymous in Weather

2006-10-29 10:15:41 · 4 answers · asked by onlyhalfpepper 2 in Astronomy & Space

2006-10-29 10:14:23 · 11 answers · asked by Eric S 1 in Mathematics

like a project involving things found in your household

2006-10-29 10:11:36 · 5 answers · asked by Anonymous in Chemistry

2006-10-29 10:10:32 · 9 answers · asked by Jack B 2 in Zoology

the mass of the baseball is 0.145 kg.
a) what are the baseball's acceleration?
b) what are the magnitude and direction of the force acting on it?
c) what is the magnitude and direction of the force acting on the player who cauight it?

2006-10-29 10:09:53 · 2 answers · asked by bhangra_di_rani2006 1 in Physics

2006-10-29 10:09:51 · 7 answers · asked by freerhyme220 1 in Earth Sciences & Geology

I am so clumsy. I fall all the time and wish I wouldnt! Im sick of it! It's so embarrassing. My boyfriend laughs at me all the time cause I fall over my own feet and sometimes the grass. I hate falling and he keeps making fun of me! I didn't think boyfriends were supolse to make fun of their girlfriends! Anyway, the other day in class, Im in 7th grade, I was walking up to the board and I tripped over nothing and hit my nose on the ground. Now I broke it, and it's so embarrasing. When I came home from school, my boyfriend picked me up in his car and he started cracking up so much at the bandage on my nose. How is it that some people can be so graceful and don't even try when people like me try so hard to be graceful but still fall? And how can I improve on my gracefullness?

2006-10-29 10:07:41 · 8 answers · asked by P!ATD GIRL! Luvn Brendon Urie! 3 in Physics

2006-10-29 10:07:32 · 4 answers · asked by Anonymous in Zoology

I am having trouble with this homework (yes homework question). Our teacher just threw it at us and hasn't explained it. It is ok if you would just like to explain how to go about it; that would be great so then I can actually learn how to work the problem. Thanks

2006-10-29 10:05:16 · 1 answers · asked by amalyn 2 in Chemistry

2006-10-29 10:03:47 · 6 answers · asked by Eric Inri 6 in Engineering

a fermentation process, yeast, pyruvate?

2006-10-29 10:03:42 · 5 answers · asked by heather c 1 in Biology

Question Details: Any other info on these topics is welcome. Please give good explanations. Can't find the info online. I know they aid in nutrient absorption but I need to go in depth for my paper.

2006-10-29 09:54:42 · 0 answers · asked by sunnyblueus 1 in Medicine

Scalene triangles have no sides or angles the same.
Right angled triangles have a right angle

If a triangle has three different length sides and three different angles - but on of them is a right angle - does it fight both categories?

Or

Does it become a right angled triangle only?

2006-10-29 09:54:20 · 4 answers · asked by Stanleymonkey 2 in Mathematics

2006-10-29 09:53:57 · 12 answers · asked by bhaiins 1 in Geography

I know this is a real basic question but my minds gone blank.

Mass(g) = Concentration(g cm-3) x Volume (cm3)

I know the units work out & mathimatically it makes sense, but does this exist in chemistry?

2006-10-29 09:52:59 · 2 answers · asked by Blimey! 3 in Chemistry

2) how much current flows through a circiut if the resistance is 4 ohms and there is a 12-volt battery?
please show formula
3)how much current flows in a 12-watt radio connected to a 120-Volt circuit?
please show formula
4) if you have two 5-watt bulbs connected in a series and then in parallel.
which circuit arrangement will give you brighter bulbs?...i know its parallel can you explain why i dont understand?

2006-10-29 09:50:19 · 3 answers · asked by prjpr29b 1 in Physics

We have kidney transplants and now a face one. We could all be soon made of different parts of dead people. Kind of like a living patchwork

2006-10-29 09:48:19 · 17 answers · asked by Anonymous in Medicine