Science & Mathematics - 27 August 2007

2007-08-27 02:37:48 · 2 answers · asked by Anonymous in Chemistry

it's easy enough to think, okay, ten marbles. you arrange them in two rows of five and it's there in your head, easy as pie. then, 100? ten times that, okay. get real rocks and count out ten groups of ten, got it. but when you try to imagine millions upon billions of say, people on earth, or stars in the universe, the process becomes absurd. how do you get your head around such large numbers? how do you really comprehend the meaning of million years? a zillion atoms? etc.

2007-08-27 02:36:46 · 10 answers · asked by Alex 2 in Astronomy & Space

It is supposed to happen at midnight tonight I heard.

2007-08-27 02:32:28 · 6 answers · asked by Anonymous in Astronomy & Space

(the eclipse on early tuesday morning, august 28,2007)

2007-08-27 02:30:33 · 4 answers · asked by Selina C 2 in Astronomy & Space

how can i solve the correct value of the power-factor correction capacitor placed across an AC line that has a total load of 16.5|_83degrees ohms and a line voltage of 220V 60Hz.

thanks in advance..

2007-08-27 02:29:34 · 5 answers · asked by final_realms00 1 in Engineering

2007-08-27 02:25:29 · 2 answers · asked by ...; 2 in Mathematics

Question 1:
http://i198.photobucket.com/albums/aa298/jsmprl/ques1.jpg

Question 2:
http://i198.photobucket.com/albums/aa298/jsmprl/ques2.jpg

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please tell me the domain. I'm not quite sure here, but what i know is that the graph of a step function should be "stairs-like" but these are quite different. Please help? Thanks in advance.

2007-08-27 02:18:49 · 3 answers · asked by Anonymous in Mathematics

2007-08-27 02:15:41 · 4 answers · asked by Anonymous in Astronomy & Space

2007-08-27 02:14:46 · 5 answers · asked by Anonymous in Biology

2007-08-27 02:12:36 · 10 answers · asked by Anonymous in Physics

methylated spirits. this is the information I know

Mass of empty cup: 2.2g (±0.05g)
Mass of cup with methylated spirits: 49.5g (±0.05g)
Mass of heated water: 44.8g (±0.05g)
Volume water: 50ml (±0.05ml)


Original temperature of methylated spirits: 20.0º (±0.5º)
Temperature of heated water: 80.0º (±0.5º)
Temperature of mixture: 54.0 º (±0.5º)

Specific Heat Capacity of a Mixture: MwaterCwaterΔTwater=MmethCmethΔTmeth

Assume specific heat capacity if water is 4.19 x 103 J/Kg-1K-1

i can solve the problem but i dont know how to take into account the the uncertanties to get relative uncertainty and percentage discrepency

2007-08-27 02:11:37 · 1 answers · asked by Anonymous in Mathematics

2007-08-27 02:11:12 · 12 answers · asked by Anonymous in Astronomy & Space

if i was ill that is, or does it have to be a specific culture of mould?

2007-08-27 02:08:12 · 4 answers · asked by adams girl 2 in Medicine

2007-08-27 02:08:02 · 2 answers · asked by abdel menem a 1 in Astronomy & Space

2007-08-27 02:07:41 · 8 answers · asked by caroline 1 in Mathematics

Would humans get electrocuted if they were to hold the same electricity cables?

2007-08-27 02:07:00 · 7 answers · asked by Gaurav S 2 in Other - Science

I know it should be visible. I just can't seem to figure out the time difference from the NASA website.

2007-08-27 02:05:06 · 2 answers · asked by kc_kate 2 in Astronomy & Space

1) f(X)=x^4-3x^2+2
f'(x)= 4x^3-6x
line tangent to the graph of f(x) is y=6x-8
Find the x-coordinate of each point at which the line tangent to the graph of f is parallel to the line y=-2x+4.


2)f(x)= ln(X^2-9)

QUESTION: Determine the symmetry of the graph of f.
Question: Write a formula for the inverse of f, for x>3.



3. f(x)= x^3-x/x^3-4x

QUESTION: Write an equation for each vertical and each horizontal asymptote to the graph f. (Show all work, including limits to infinty to get the answers)

QUESTION: Describe the symmetry of the graph of f. Show all work using your symmetry test.

2007-08-27 01:56:27 · 2 answers · asked by luca 1 in Mathematics

when your mine is a popular movie, the stars are The gardeners daughter, sabastine & catalina

2007-08-27 01:55:21 · 3 answers · asked by nelly ket 1 in Weather

In telephony space switching is well understood, but time slot switching, is not all that clear. Any reference to web site is welcome.

2007-08-27 01:55:17 · 2 answers · asked by Venkat R 6 in Engineering

Pls give me the ans!!!!

2007-08-27 01:43:20 · 3 answers · asked by kikija 1 in Astronomy & Space

2007-08-27 01:39:16 · 1 answers · asked by superfreak 2 in Chemistry

2007-08-27 01:36:31 · 4 answers · asked by Ruban 1 in Astronomy & Space

why can concentrated sulfuric acid be stored in mild steel tanks, but not dilute sulfuric acid?

2007-08-27 01:30:31 · 2 answers · asked by Anonymous in Chemistry

2007-08-27 01:19:34 · 9 answers · asked by hassium_altair 1 in Weather

2007-08-27 01:18:43 · 4 answers · asked by alphecca 2 in Botany

When, where, and what time will be best for viewing?

Thanks. Also when might this happen again. Will my children be able to see it in their life time?

2007-08-27 01:15:27 · 16 answers · asked by Anonymous in Astronomy & Space

2007-08-27 01:08:32 · 8 answers · asked by anfun002 1 in Weather

Could it be H2S(g) + Ag(l) -> Ag2S(l) + H2(g)? Could it be reversible I wonder.

2007-08-27 01:06:22 · 2 answers · asked by mrsjoshgroban 1 in Chemistry

I just had an urge to take some pics and they actually showed up. Now my camera won't work!

2007-08-27 01:04:42 · 13 answers · asked by Duran Duranfan 2 in Paranormal Phenomena