Science & Mathematics - 27 October 2006

2006-10-27 12:23:20 · 4 answers · asked by Punkin 1 in Biology

2006-10-27 12:23:15 · 3 answers · asked by Hoang 1 in Physics

Just curious.

2006-10-27 12:22:17 · 9 answers · asked by Anonymous in Earth Sciences & Geology

the formula becomes simplier A=Pe^rt where is a constant and equals approximately 2.7183. Calculate A with continous compounding. Round your answer to the hundredths place.

2006-10-27 12:19:13 · 2 answers · asked by mine 1 in Mathematics

on the first day of school, a science teacher in my school took a mixture of chemicals or something and diped stuff into it (like a dollar bill n stuff) and she lit it on fire, but it didn't burn. anybody know the mixture?

2006-10-27 12:14:31 · 5 answers · asked by LITTLE GREEN GOD 3 in Chemistry

2006-10-27 12:10:55 · 11 answers · asked by Anonymous in Zoology

A car accelerates from a standstill to 60 km/hr in 10.0 seconds. What is its acceleration?

A train is accelerating at a rate of 2.0 km/hr/s. If its initial velocity is 20km/hr, what is its velocity after 30 seconds?

Equation: a= vf-vi/ t a=velocity
vf= final velocity
vi=initial velociy
t=time

2006-10-27 12:09:10 · 3 answers · asked by Anonymous in Physics

You know the Big Bang?? Well, people say that ever since then, the universe has been spreading out from it's location ever since it's taken place. There is a theory that after the universe will get smaller again, and shrink back. I was thinking about this, and I came up with a theory of my own: after the universe is done shrinking, it will fold back into itself, and the Big Bang will happen again, only this time with different results. Like maybe Earth will still be here, but humans don't exist and the planet is ruled by giant, talking, sentient bugs, or something like that. Maybe we'll all exist, but the sun will blow up tomorrow. Kind of like the alternate dimension theory, only it's the same dimension, and it's all happenign on the same timeline. Sorry if I confused you, I just had to get this out.

2006-10-27 12:09:06 · 16 answers · asked by dalgirl990 2 in Astronomy & Space

2006-10-27 12:09:06 · 3 answers · asked by clevat 2 in Chemistry

3.01 x 10^23 molecules of water.

2006-10-27 12:07:30 · 4 answers · asked by Sun 1 in Chemistry

Part a. Find the value of x, The measure of angle ABD, the measure of angle DBC and the measure of angle ABC..
Part b. What term best describes Ray BD.? Why?

2006-10-27 12:07:28 · 5 answers · asked by Anonymous in Mathematics

yes
or
No

2006-10-27 12:02:38 · 1 answers · asked by Cf Precious 3 in Engineering

A 15 kg block is at rest on a level floor. A 390 g glob of putty is thrown at the block such that it travels horizontally, hits the block, and sticks to it. The block and putty slide 15 cm along the floor. If the coefficient of sliding friction is 0.4, what is the initial speed of the putty?

2006-10-27 12:02:21 · 2 answers · asked by Dan L 1 in Physics

i need to find out for school and a contest help help help!!!

2006-10-27 12:01:20 · 9 answers · asked by green land 1 in Earth Sciences & Geology

2006-10-27 11:59:36 · 18 answers · asked by paul c 1 in Earth Sciences & Geology

2006-10-27 11:59:10 · 6 answers · asked by yoyo 2 in Chemistry

One of the experiments I have to do is 'The Beer Lambert law' - Spectroscopy'. Where I have to measure the absorbance of standard solutions of Ferroin complex.
I would also like to know:
1) how can I calculate the concentration of iron from the absorbance?
2) Ater plotting a graph of absorbance vs. concentration (for the samples of known concentration), how can I then calculate the molar absorptivity of ferroin at 470nm?
3)How can I then use the graph to establish the total mass of iron in the the tablet toether with estimated errors?
4)What colour of light does 470nm correspond to and why was this wavelength chosen for this experiment?

[p.s. Sorry for asking so much questions - It's just that I cannot find any suitable answers and my lecturers won't help me!] Thanks to anyone that can help me out.

2006-10-27 11:58:29 · 2 answers · asked by clevat 2 in Chemistry

2006-10-27 11:58:01 · 2 answers · asked by Lady B 1 in Earth Sciences & Geology

the eagle has his wings spread high with the 8 stars in the center his feet are on a smaller badge with the poopeler in it

2006-10-27 11:57:31 · 1 answers · asked by ? 5 in Botany

If two angles of a triangle are added together to equal 135 degrees, what is the degree measure of the third angle?

2006-10-27 11:51:11 · 16 answers · asked by Anonymous in Mathematics

limit as x approaches 0 for the following:

1. (2^x - 1) / x

2. [cos x - 1 + (x^2/2)] / x^4

TIA

2006-10-27 11:50:29 · 3 answers · asked by DoughboyFresh 2 in Mathematics

2006-10-27 11:49:30 · 12 answers · asked by Anonymous in Mathematics

doz any1 know a site were i can watch the death video....wen the sting ray killed him....

i hear ppl saying they seen it & i would also lik3 2 see

p.s dont say "Y??? ur sick ."
or watever cuz i will report U
I just wanna know where i can see the video. im curious

2006-10-27 11:48:51 · 11 answers · asked by Anonymous in Zoology

2006-10-27 11:48:08 · 10 answers · asked by LITTLE GREEN GOD 3 in Chemistry

for example, if i want to buy something for $69.99 or $79.99 and i have 10% discount, how much will be the cost of the product?

2006-10-27 11:47:41 · 14 answers · asked by lincolngomes301 2 in Mathematics

all they do with most of the cord blood, and the rest is throw it away. Why isn't it recognized or studied?

2006-10-27 11:47:32 · 4 answers · asked by NANCY K 6 in Medicine

this is a physics question.

2006-10-27 11:43:15 · 3 answers · asked by pr1nce$$ 1 in Physics

2006-10-27 11:41:01 · 2 answers · asked by Anonymous in Chemistry

2006-10-27 11:40:24 · 15 answers · asked by Anonymous in Mathematics

how fast does the world spin? why cant we feel it?

2006-10-27 11:39:00 · 17 answers · asked by angel_fire3 1 in Astronomy & Space