Science & Mathematics - 30 August 2007

2007-08-30 07:27:46 · 4 answers · asked by Anonymous in Geography

2007-08-30 07:26:48 · 7 answers · asked by kito m 1 in Engineering

The intergral from 1 to 4 of sqrt (t) times ln (t) dt
I tryed to use parts with U = sqrt t and dv = Ln(t) abd v=1/t but i can't figure out how to derive sqrt t besides 1/2 times 1/sqrt(t)

2007-08-30 07:26:33 · 5 answers · asked by College guy 1 in Mathematics

I take an intro level chem class and this is one of the problems we have for homework,

1.) For each of the following compounds, write the formula and name for any polyatomic ions which might be present:

(the numbers are supposed to be subscripted, Y! Answers isn't letting me subscript them)

CaCl2
AlCl3
KCN
Ba(OH)2
NaClO3
FeBr2
AgNO3
NaMnO4
K2CrO4
(NH4)2SO4
Ca3(PO4)2
NaHSO4
MoO2
CaCr2O7

I'm not asking for answers, I'm just wanting to know how I would find the answers given those compounds?

2007-08-30 07:24:10 · 5 answers · asked by Merk K. 1 in Chemistry

Suppose f is differentiable on [0, oo) and lim (x --> oo) f(x) exists. Does this implies that lim (x --> oo) f'(x) = 0? Apparently the answer is yes, because f has an horizontal assyntote. But I couldn't prove it formally.

2007-08-30 07:22:17 · 3 answers · asked by Marcos 1 in Mathematics

if i calculate the diffence in dB after placing a material in a room, will that help.......??????????

2007-08-30 07:21:34 · 1 answers · asked by Anonymous in Physics

I need information on acoustic shock, don't take it from wikipedia and include sources please.

2007-08-30 07:21:28 · 2 answers · asked by flubeca1 2 in Medicine

12a-5b=18
15a-5b=30

2007-08-30 07:20:40 · 1 answers · asked by pinkparadiseforever 2 in Physics

Ok listen to the weather forcast .
tomorrows weather will be sunny and dry.
just hang your washin out and before you know it you have to rewash them cause its pouring down..
yet meteorologists will give you 2 months in advance weather forcast how can they when they often get tomorrows wrong.
think of all the variables involved in the weather paterns here..if they would just stop guessin and tell the truth that your guess is as good as ours.

2007-08-30 07:19:00 · 15 answers · asked by emc.squared 1 in Weather

My husband wants to solder a couple of silver linking rings into a bracelet for me. He has two soldering irons, one is a 25 watt, the other is 50 watts and uses both of these for soldering brass or nickel in modelling. We are not sure if either would be suitable for soldering silver. Can anyone help, please?

2007-08-30 07:10:34 · 7 answers · asked by Anonymous in Chemistry

We are 4 friends who celebrate each others birthday by going away for a couple of days. Normally 3 of us would pay for the 4th's birthday, easy.

On this occasion we are celebrating 2 of our birthdays and having one trip. The question is:

How do we divide up the total cost of the trip so that the 2 people who's birthday it is also contribute equally to each others birthday?

2007-08-30 07:08:54 · 16 answers · asked by Anonymous in Mathematics

2007-08-30 07:08:41 · 5 answers · asked by Pebbles 5 in Chemistry

2007-08-30 07:07:12 · 10 answers · asked by Anonymous in Other - Science

http://www.oberlin.edu/physics/catalog/demonstrations/fluids/pascalvases.jpg

2007-08-30 07:02:47 · 3 answers · asked by Anonymous in Physics

It's an orange reddish color and it looks like a wasp and a mosquito mix. Of course, it flies.

2007-08-30 07:01:06 · 5 answers · asked by 2000 1 in Zoology

I need examples...because My teacher will not explain this to me :(

Converting Special Fractions to Percents
Converting Decimals to Percents
Converting Decimals to Fractions
Converting Fractions to Percent

Please just give me one example of each, I need the help bad.

2007-08-30 07:00:24 · 8 answers · asked by Anonymous in Mathematics

smooth muscle
breathing muscle
skeletal muscle
cardiac muscle

2007-08-30 06:59:42 · 4 answers · asked by THAT GUY 1 in Biology

Solve: Round any irrational solutions to the nearest thousandth:

-t^2 - 16t- 64=0

2007-08-30 06:54:15 · 4 answers · asked by Aimee R 1 in Mathematics

49-(a+b)^2

factor completly

2007-08-30 06:52:33 · 2 answers · asked by Aimee R 1 in Mathematics

factor Completly:

9x^2 - 25x^2

2007-08-30 06:50:59 · 2 answers · asked by Aimee R 1 in Mathematics

Factor Completly

0.04x^2 - 0.28x + 0.49

2007-08-30 06:49:30 · 2 answers · asked by Aimee R 1 in Mathematics

A) Nucleus
B) CYTOPLASM
C) Cartilage
D) Cell Membrane

2007-08-30 06:49:00 · 5 answers · asked by THAT GUY 1 in Biology

2007-08-30 06:48:10 · 10 answers · asked by Anonymous in Astronomy & Space

2007-08-30 06:48:00 · 4 answers · asked by Anonymous in Zoology

2007-08-30 06:47:56 · 11 answers · asked by Anonymous in Earth Sciences & Geology

Suppose that the complement of an angle measures 5x + 4 and the supplement of an angle measures 15x - 6. Find the measure of the angle.

2007-08-30 06:39:52 · 5 answers · asked by sillyboys_trucksare4girls 2 in Mathematics

i gotto do a project on this! gotto make a working project involvin an IC or an op-amp!

2007-08-30 06:37:50 · 6 answers · asked by Anonymous in Engineering

i would like a definition please and thank you

2007-08-30 06:34:46 · 1 answers · asked by some dude 2 in Mathematics

Hey! just wondering, I'm in 8th grade and I'm taking geometry for math. In 7th grade i took Algebra1 and in 6th, I took Pre-Algebra. Are these all considered AP classes for math? or just regular math? thanks!!

2007-08-30 06:30:41 · 5 answers · asked by Brandon 1 in Mathematics

I do not understand how to simply solve for x... Please help!

2007-08-30 06:30:02 · 3 answers · asked by kitty 1 in Mathematics