Science & Mathematics - 13 November 2007

2007-11-13 01:19:49 · 13 answers · asked by Anonymous in Chemistry

As i know,there are two methods that we can use:-poison technique and leaching technique.So,how we want to apply these methods and to know which method is better to control the fungi?

2007-11-13 01:19:48 · 1 answers · asked by hermione 1 in Botany

Explosive charges containing TNT (trinitrotoluene) do not explode when subjected to mechanical shock, but they do explode violently when detonated properly. The most common type of detonator is a blasting cap containing mercury fulminate, Hg(CNO)2, which does explode when struck. Draw the correct Lewis structure for the CNO- anion, and for the optimum structure decide which of the following statements about formal charge are true. Enter the correct choices in alphabetical order, e.g. ACF, ABDF, etc.
A) FCC=0
B) FCC=+1
C) FCC=-1
D) FCC=-3
E) FCN=-1
F) FCN=+3
G) FCN=0
H) FCN=+1
I) FCO=-1
J) FCO=-3
K) FCO=0
L) FCO=+1

Thank you!

2007-11-13 01:19:00 · 3 answers · asked by Anonymous in Chemistry

Post a reason you think explains the difference in cellular function within the cellular respiration between the heart and the brain.

2007-11-13 01:17:55 · 2 answers · asked by Mark h 1 in Biology

2007-11-13 01:17:24 · 1 answers · asked by blaqprinceZz 1 in Biology

2007-11-13 01:12:52 · 3 answers · asked by white water 1 in Engineering

Man has a 5,000 year history of cannabis use. Smoking is a fairly recent development. It is safe, yet we are told it is dangerous and has no beneficial uses. That is not true. I want to find out how people use it and how it benefits them. Is it a medication? If so, how is it used? What legitimate commercial uses does it have? Serious answers, please.

2007-11-13 01:10:48 · 3 answers · asked by Anonymous in Other - Science

2007-11-13 01:07:39 · 8 answers · asked by Anonymous in Biology

2007-11-13 01:06:56 · 1 answers · asked by Benadino 1 in Biology

What is the maximum load that could be suspended from a copper wire of length 1.8 m and radius 1.2 mm without breaking the wire? Copper has an elastic limit of 2.0 x 10^8 Pa and a tensile strength of 4.5 x 10^8 Pa.
N

2007-11-13 01:00:54 · 2 answers · asked by colin.muller 1 in Physics

A hair breaks under a tension of 1.2 N. What is the diameter of the hair? The tensile strength is 2.2 x 10^8 Pa.
m

2007-11-13 01:00:06 · 1 answers · asked by colin.muller 1 in Physics

Hi,

I need some help. i cant find the correct information for this. maybe i am not looking in the right place!!

A three phase system is utilised on a street where a single phase goes to houses with a value of 230V

how would i draw the waveform for the single phase supply

thanks

2007-11-13 00:57:16 · 3 answers · asked by Jaffa K 1 in Engineering

Find all values of x for which the first derivative = 1
What are the x coordinate minimums?
What are the inflection points?

2007-11-13 00:55:22 · 2 answers · asked by TennisCutie 3 in Mathematics

It happened, probably more than 15 times already. At first, I didn't pay attention to it. But it came to a point when I was actually expecting the light to turn off everytime that I had to look at the light and it would turn off just as soon as I looked at it! It's kind of creepy. I keep on imagining things that might be a reason for it. They're kinda funny but I can't help myself!

2007-11-13 00:50:29 · 17 answers · asked by Anonymous in Parapsychology

Now scientist belive it was something under ground, maybe volcano or eruption that caused the extinction...True or false ?

2007-11-13 00:46:46 · 3 answers · asked by Thallasa35 2 in Earth Sciences & Geology

2007-11-13 00:43:42 · 6 answers · asked by Link strikes back 6 in Earth Sciences & Geology

2007-11-13 00:26:07 · 2 answers · asked by Anonymous in Earth Sciences & Geology