Science & Mathematics - 25 July 2006

how do you do it? how could you explain it?

2006-07-25 22:54:30 · 2 answers · asked by emadorum 2 in Physics

2006-07-25 22:53:11 · 5 answers · asked by Chidi O 1 in Mathematics

2006-07-25 22:41:33 · 13 answers · asked by maqchem 1 in Chemistry

2006-07-25 22:40:41 · 2 answers · asked by Anonymous in Other - Science

I have a basic question on calculus ....please can someone explain to me :


Let f(x) = x^2

y + delta y = f ( x + delta x )

The book says that a small increase in x will cause a small increase in y.

But if I put lets say 3 and 2 for x and dx y is 5^2 which is 25.

But this isn't the same as f(3) + f(2) which equals 13 ?

What have I done wrong ?




Also, can f ( a+b+c ) be treated as f(a) + f(b) + f(c) ?


Thanks a lot for any help

2006-07-25 22:38:11 · 9 answers · asked by name_forgotten 3 in Mathematics

CN

2006-07-25 22:34:22 · 12 answers · asked by illias k 2 in Other - Science

2006-07-25 22:34:13 · 4 answers · asked by YounZu P 1 in Other - Science

Wouldn't you think that we would be traveling into space in flying saucers or Millenium Falcons by now?

2006-07-25 22:33:18 · 2 answers · asked by Anonymous in Other - Science

is it significant .actually how gravity arises .what is its nature

2006-07-25 22:24:11 · 4 answers · asked by anjith g 1 in Physics

2006-07-25 22:22:54 · 20 answers · asked by usualsuspect 1 in Weather

i have no idea thats why i need help. but i thin its got something to do with the particle model.

2006-07-25 22:20:09 · 6 answers · asked by Anonymous in Other - Science

materials:
1-cellophane bag (11/2x10)
tissue paper
1-200ml beaker
100ml starch solution
5ml Lugol's solution
string or thread

procedure:
fill the cellophanewith starch solution to about 1inch.tie the open end with string tightly and make sure no air is trapped inside the cellophane.wash the cellophane with starch and be sure that there are no leaks present.ensure that no stach is left from the surface of the bag.wipe excess water with tissue paper.immerse the cellophane bag in a beaker with water enough to cover the height of the cellophane containing starch solution then add 10 drops of Lugol's iodine solution.note thetime it takes until changes are observed on the set-up.

question:
1. what was the color of the iodine solution and starch solution at the beginning of the experiment?
2. what happened to the experiment after a period of time?

2006-07-25 22:19:32 · 2 answers · asked by beibi anghell 1 in Botany

There must be enough data out there to construct a more reliable model capable of accurately predicting the weather...

2006-07-25 22:18:18 · 9 answers · asked by brasscat 1 in Weather

2006-07-25 22:12:35 · 21 answers · asked by bazza1873 1 in Astronomy & Space

2006-07-25 22:03:02 · 7 answers · asked by ashu 1 in Astronomy & Space

2006-07-25 22:00:01 · 2 answers · asked by ephstigers 6 in Astronomy & Space

2006-07-25 21:57:03 · 10 answers · asked by Anonymous in Mathematics

I've visited a jeans forum, hoping for enlightenment about care instructions on my >indigo dry denim jeans<, as well as how to fade them according to my petite built.
To my horror, the people there insisted that dry jeans SHOULD NOT be washed for the first SIX MONTHS, just wear them to get a great faded look.. they said.
so, what goes on in the washer which prevents me from getting that same faded look I outta get even if i did not wash my dry jeans? sure there will be bleeding, but i just don't see the before-after difference.

2006-07-25 21:47:14 · 3 answers · asked by potatoboyy 1 in Chemistry

Chemistry as a subject

2006-07-25 21:35:49 · 5 answers · asked by Sola B 1 in Chemistry

2006-07-25 21:29:08 · 2 answers · asked by marky_boy_1230 2 in Chemistry

I cant find it, can anyone give me the co-ordinates

2006-07-25 21:27:25 · 4 answers · asked by zizoufan 2 in Geography

I'd like to hear from you guys...

2006-07-25 21:20:28 · 14 answers · asked by aRnObIe 4 in Geography

They should if gravity anomalies exist since they go hand in hand

2006-07-25 21:19:15 · 6 answers · asked by JoeThatUKnow 3 in Physics

is it possible and if so how long would it take to build?

2006-07-25 21:18:31 · 11 answers · asked by Anonymous in Engineering

I'm betting your balls that the Philippines is an asian country.

2006-07-25 21:17:30 · 7 answers · asked by Coffee-Infused Insomniac 2 in Geography

2006-07-25 21:11:58 · 19 answers · asked by Anonymous in Physics

The biochemical responses are the release of various chemical substances such as hormones,etc. when the feeling of affection is experienced.

2006-07-25 20:59:55 · 2 answers · asked by Ctrl 1 in Other - Science

Looking as far as we can into space we see nothing. When we look at the very small we see it surounded by nothing. So if every thing is made mostly nothing isn't it a very important something?

2006-07-25 20:59:24 · 15 answers · asked by realhorsesass 1 in Astronomy & Space

2006-07-25 20:54:10 · 8 answers · asked by Anonymous in Earth Sciences & Geology

2006-07-25 20:45:25 · 9 answers · asked by Anonymous in Astronomy & Space