Science & Mathematics - 6 October 2007

It is a scientifically proven fact that the universe began with all matter compressed into a mass smaller than the point af a needle. I'm wondering how much pressure or gravitatonal pull would be required to do this because scientist say gravity is realitively weak?

2007-10-06 03:43:10 · 6 answers · asked by james h 2 in Astronomy & Space

large and myelinated nerve fiber that originate in the anterior horns of the spinal cord after entering the muscle branches in axonal terminals that end about near the midpoint of muscle by forming a neuromuscular junction. at that point, nerve terminal ends into a small invaginated part of the muscle membrane called synaptic gutter.

2007-10-06 03:41:31 · 6 answers · asked by Ree 1 in Biology

I would love some help on my physics Homework.
An aircraft flies justv below a negatively charged thunder cloud. What would hapen to the induced charges when the aircraft flies away from the cloud?

2007-10-06 03:39:12 · 6 answers · asked by Anonymous in Weather

why is the last orbital in an atom usually not full loaded with electrons. example 3s2 3p4 why it is a general behavior of atoms

2007-10-06 03:38:31 · 2 answers · asked by Ozgur 1 in Chemistry

**I don't want the answer though, because the answers are in the back of my practice packet; I just want to know, how would you approach these problems?**

8) If t + u + v = 42 and 2u + 2v = 60, what is the value of t?
...(A) 12
...(B) 14
...(C) 18
...(D) 24
...(E) 27

16) If (x + y)^2 - (x - y)^2 = 84 and x and y are positive integers, which of the folowing could be the value of x + y?
...(A) 10
...(B) 12
...(C) 14
...(D) 16
...(E) 18

17) In the xy-plane, the line y = ax + 5 is parallel to othe line 3x + 8y = 10. What is the value of a?
...(A) -6
...(B) -8/3
...(C) -3/8
...(D) 3/8
...(E) 8/3

2007-10-06 03:37:47 · 5 answers · asked by The Girl 2 in Mathematics

I have two triangles inside one another, and I don't know the bases of either of them. The base ratio is 4:9. I know that the sides of the smaller triangle are 4 and 3.2 and the sides of the larger triangle are 9 and 7.2.
Does anybody have ANY idea how I can find out the bases of the two triangles?!?

2007-10-06 03:31:15 · 3 answers · asked by Kess 2 in Mathematics

A daredevil is shot out of a cannon at 45.0° to the horizontal with an initial speed of 26.0 m/s. A net is positioned a horizontal distance of 53.0 m from the cannon. At what height above the cannon should the net be placed in order to catch the daredevil?

2007-10-06 03:30:18 · 3 answers · asked by loveall 3 in Physics

i am planning to buy a microscopes.plz answer.i want good websites

2007-10-06 03:28:59 · 1 answers · asked by rampageenergyman 2 in Chemistry

can someone plz explian how the moon push and pulls its tides. and can i plz see how it looks like

2007-10-06 03:27:56 · 2 answers · asked by Anonymous in Astronomy & Space

will it .i want to see rusted iron.plz tell

2007-10-06 03:25:46 · 1 answers · asked by rampageenergyman 2 in Chemistry

2007-10-06 03:21:45 · 2 answers · asked by Anonymous in Chemistry

2007-10-06 03:20:28 · 8 answers · asked by =emelem_09= 2 in Physics

find the equation of the circle which passes through the point A(0,1) , B(3,-2) and has its centre lying on the line y=x-2

please present workings

2007-10-06 03:16:05 · 6 answers · asked by Anonymous in Mathematics

2007-10-06 03:14:22 · 7 answers · asked by Anonymous in Mathematics

2007-10-06 03:11:34 · 8 answers · asked by Anonymous in Geography

*2 stands i meant to be small and higher

2007-10-06 03:10:39 · 6 answers · asked by Anonymous in Mathematics

2007-10-06 03:09:56 · 3 answers · asked by JAMES 4 in Engineering

2007-10-06 03:09:40 · 5 answers · asked by Anonymous in Mathematics

the interior angles of an transversal line is given as (2x-10)degree and (65 -x)degree.
find the value of x? where the parallel line are m and n

2007-10-06 03:02:32 · 1 answers · asked by gunaroopam r 1 in Mathematics

2007-10-06 03:00:19 · 6 answers · asked by aida 2 in Geography

equation: x^2 = i

2007-10-06 03:00:09 · 8 answers · asked by Luthien 4 in Mathematics

calculate the total heat (J) needed to convert 0.316 mol ethanol gas (C2H6O) at 151°C and 1 atm to liquid ethanol at 25.0°C and 1 atm.

Boiling point at 1 atm 78.5°C
cgas 1.43 J/g·°C
cliquid 2.45 J/g·°C
H°vap 40.5 kJ/mol

2007-10-06 02:58:18 · 1 answers · asked by Ecka 1 in Chemistry

Kindergarden soccer
I usually have 6 players but one player can't make it. so how many minutes should each player play, to get equal time

2007-10-06 02:53:44 · 2 answers · asked by Parrot Bay 4 in Mathematics

thanks

2007-10-06 02:45:35 · 3 answers · asked by Anonymous in Medicine

How would you classify this curve?
9y^2 + 16x^2 – 20y + 15x + 24xy = 0

Is it
a) an ellipse
b) a parabola
c) a hyperbola
d) none of the above

2007-10-06 02:44:14 · 5 answers · asked by Dr D 7 in Mathematics

2007-10-06 02:43:52 · 2 answers · asked by Dr. An 1 in Chemistry

It was founded by secularists and it has great stocks of natural resources/wealth, so if anything should be prone to become a hedonistic society.
How has Jesus wrested control?

In Europe, I think there would be very few countries with a percentage of Christians even approaching the 70-80% the US has.

2007-10-06 02:43:15 · 6 answers · asked by Anonymous in Geography

2007-10-06 02:39:43 · 5 answers · asked by Dr D 7 in Mathematics

4 Write balanced chemical equations or formulas (annotated where appropriate) for each of the following descriptions:

(i) oxygen undergoes photodissociation in the upper atmosphere;

(ii) the nitric oxide molecule undergoes photoionisation in the upper atmosphere;

(iii) ozone is formed in the upper atmosphere;

(iv) ozone is destroyed in the upper atmosphere;

(v) nitric oxide catalyses the decomposition of ozone in the stratosphere;

(vi) nitrogen dioxide is an acidic oxide and forms an acid solution in water;

(vii) sulfur dioxide emissions from industrial sources cause acid rain;

(viii) why rainwater is naturally acidic, even in the absence of any polluting gases

(ix) despite the answer in (viii), why the pH of unpolluted sea water is about 8.2

(x) why nitrogen is not, but carbon dioxide is, a 'greenhouse gas'

2007-10-06 02:26:28 · 1 answers · asked by Hammad A 1 in Chemistry

How do i work this out

2007-10-06 02:25:02 · 14 answers · asked by Anonymous in Mathematics