Science & Mathematics - 6 January 2007

how would you solve...

1.2e^(-5x)+2.6=3

2007-01-06 13:52:27 · 8 answers · asked by Anonymous in Mathematics

2007-01-06 13:52:05 · 5 answers · asked by crybaby 2 in Mathematics

1.)Ionic Bondings usually have _________ melting points.
a.) low
b.) average
c.)high
d.) no

2.) Ionic Compounds are __________ conductors.
a.)good conductors
b.)poor conductors
c.)average conductors
d.) not any type of conductors

3) Van der Waal bonding is a type of
a.) intermolecular bonding
b.)polar bonding
c.)dipole bonding
d.) covalent bonding

4)Hydrogen bonding occurs with
a.) polar molecules
b.) dipole molecules
c.) Metals only
d.) hydrogen molecules

2007-01-06 13:51:58 · 4 answers · asked by Anonymous in Chemistry

I live in Canada and it's warm, sunny and January. There is no snow on the ground. I'm scared.

2007-01-06 13:49:09 · 16 answers · asked by lsupergeorgel 1 in Weather

2007-01-06 13:46:28 · 6 answers · asked by Sherry A 3 in Zoology

need to find the perimeter using these vertices, not sure of length of sides or how to figure them out

2007-01-06 13:45:25 · 6 answers · asked by zytlaly 4 in Mathematics

2007-01-06 13:44:11 · 1 answers · asked by god 2 in Chemistry

I am doing a science fair project: The effect of gender on reaction times. I can't find much! If I get this information, it would be AMAZING!! thanks in advance!

2007-01-06 13:43:31 · 5 answers · asked by Teeeetz 2 in Biology

why not ?And what did einstein know about speed anyway he published his paper in the early 1900's.

2007-01-06 13:43:00 · 14 answers · asked by Shark 7 in Physics

gice me answeres before the end of the day!

2007-01-06 13:42:44 · 5 answers · asked by bow_wow 1 in Biology

1) What is a triple covalent bond?
a. an electron is shared between 3 atoms
b. 3 electrons are shared between 3 atoms
c. 3 electrons are shared between atoms

2) a diamond is composed of?
a. metals (Al)
b. Non metals (O)
c. Transition metals (Zn)
d. Metalloids (C)

3) Does silicon dioxide have the same structure asd diamonds?
a. yes
b.no
c. it depends on which diamond

4) Which of these proprieties for a diamond is correct?
a. low melting point
b. soluble in water / orgainic substances
c. doesnt conduct electricity

2007-01-06 13:42:29 · 2 answers · asked by Anonymous in Chemistry

What's the difference between a Neo Natal Nurse, and just a nurse that cares after the newborns in the hospital? I've just recently found out that they're different... I'd like to become the nurse that cares for the newborns (Do they have a specific name?) because I don't think I'd be able to cope with the stress of sick and dying babies all day long. Anyone have any insight? I keep trying to do yahoo searches, but I'm only getting information on colleges and what classes to take, etc.

2007-01-06 13:36:47 · 4 answers · asked by itskatyo 3 in Medicine

NEED TO NO 4 FAIR

2007-01-06 13:34:45 · 12 answers · asked by JEFFREY O 1 in Physics

2007-01-06 13:31:32 · 8 answers · asked by anonymous91 1 in Chemistry

On the topic of acids and bases, how can you tell if there is calcium chloride or baking soda in your toothpaste without looking at the ingredients label?

2007-01-06 13:31:32 · 3 answers · asked by Anonymous in Chemistry

imagine a rope wrapped around the earth at the equator (earths circumference C). then think of adding d feet to the ropes length so it can now circle earth at a distance h feet above the equator at all pionts. 1. write an equation to model this situation. 2. solve your equation for d. 3. how much rope do you need to insert if you want the rope to circle earth 500 feet above the equator? use 3.14 as an approximation for pie.

*note----- lenght of rope= C+d, C=2(pie)r

2007-01-06 13:25:40 · 4 answers · asked by fuzzy w 1 in Mathematics

2007-01-06 13:25:13 · 5 answers · asked by somepenguins 2 in Astronomy & Space

are there any side effects from taking niacin and drinking alcohol at the same time?

2007-01-06 13:21:55 · 8 answers · asked by John M 2 in Medicine

2007-01-06 13:15:05 · 8 answers · asked by $3RG!O 1 in Astronomy & Space

Suppose a cart is being moved by a certain net force. If a load is dumped into the cart so its mass is doubled, by how much does the acceleration change?

2007-01-06 13:14:45 · 3 answers · asked by blah 3 in Physics

I'm trying to learn more about siphons. We haven't learned much about them in school yet, however I've searched a bit on the web. So far, I know that the higher the level of the water, the more water pressure that will be exerted.

Here's the question: is it possible to rise the pressure WITHOUT changing the level of the water? So far, the only way that I have experimented with is changing the size of the tube on the receiving end of the water. This provided results, but I want to know if you can change the pressure by altering factors in the tank holding the water. (Again I want to keep the initial water level the same.)

Websites where I can find out more are helpful, but I prefer direct answers.

Sorry if this is hard to understand. I don't know much terminology on the subject.

2007-01-06 13:12:25 · 2 answers · asked by Anonymous in Physics

if so, describe the scene.

p.s. don`t bother to describe it if you woke up in the moment when you died

2007-01-06 13:11:35 · 21 answers · asked by Anonymous in Parapsychology

2007-01-06 13:11:31 · 4 answers · asked by Anonymous in Biology

global warming is getting us nearer and nearer to our death,
especially if u live in ny.. today was like .. 65 degree and its jan!!!

wat would you do to help stop global warming.
and.. wat do you think.. ..50 years later

2007-01-06 13:11:01 · 7 answers · asked by ILIKETOPARTYY~! 3 in Weather

I may be wrong... but isn't time just a sequence of events? at absolute zero nothing can move therefore there are no events to sequence so could time exist?

2007-01-06 13:10:10 · 14 answers · asked by Anonymous in Physics

if we had a new ice age and inly hundreds would survive would you start thinking more about the enviroment
or would you careless because it might take 200000 years till the next one?

2007-01-06 13:08:51 · 9 answers · asked by Dragonfire445644 2 in Astronomy & Space

is it connective, muscle,nerve or epithelial??

2007-01-06 13:08:42 · 7 answers · asked by Anonymous in Biology

Can such questions be thrown open to other categoties, so that more answers could be received, a kind of brain storming effort?
thnks.

2007-01-06 13:07:53 · 1 answers · asked by mandira_nk 4 in Earth Sciences & Geology

2007-01-06 13:07:35 · 4 answers · asked by Lloyd HOUZ 2 in Engineering

x=-70plus or minuse sqaure root of 7300 over 4

2007-01-06 13:05:25 · 4 answers · asked by mpwife4ever7678 1 in Mathematics