Science & Mathematics - 8 October 2006

2006-10-08 07:13:55 · 1 answers · asked by Anonymous in Engineering

2006-10-08 07:13:50 · 9 answers · asked by princess 1 in Mathematics

2006-10-08 07:12:42 · 5 answers · asked by Anonymous in Chemistry

2006-10-08 07:11:58 · 3 answers · asked by Anonymous in Biology

Please just answer "less" or "more." I don't need or want any commentary. Thank you.

2006-10-08 07:10:45 · 3 answers · asked by Anonymous in Mathematics

1. The effect of different liquids on teeth
2. The effects of salt and other contaminants on rate of rusting
3. The effect of temperature on the growth rate of crystals


For #1, I was thinking about using either real teeth or egg skins to represent the teeth. Then I'd use three liquids (probably milk, orange juice, and soda) and see which dissolves the tooth or egg the most in a given amount of time.

For #2, I was thinking about using three different contaminants to see which would make an iron nail rust fastest. Any ideas for the contaminants?

For #3, I'd grow crystals somehow (?) and see if growing them in the cold differs from growing them in warmth.

Which one do you think is best? How could I go about doing these experiments? Any suggestions for different experiments?

2006-10-08 07:08:53 · 7 answers · asked by Anonymous in Other - Science

2006-10-08 07:04:19 · 1 answers · asked by isknowledgereallyworthit 1 in Chemistry

2006-10-08 07:02:49 · 11 answers · asked by sunflower20049 1 in Astronomy & Space

Ok, so ive working on this problem for days and cant figure it out,

A cone shaped drinking cup is to be made to hold 27cm3 of water, find the height and radius of the cup that will use the smallest amout of paper.

If anyone has any ideas i would appreciate it.

2006-10-08 07:00:57 · 6 answers · asked by Anonymous in Mathematics

2006-10-08 06:56:36 · 13 answers · asked by phanendra k 1 in Physics

i just dont see why hair should be in our noses. is it to block germs or something? plz give me reasons. thnx alot

2006-10-08 06:53:59 · 10 answers · asked by rustik 4 in Biology

2006-10-08 06:53:38 · 3 answers · asked by booger 2 in Mathematics

2006-10-08 06:53:16 · 4 answers · asked by ♥heartbroken♥ 3 in Mathematics

so what is the point of teaching evolution in schools like it's fact? One man thought of it, and all of a sudden we treat it like it's fact. Many of many of people write books about different things and get called fools and idiots for what they think. Yet Darwin steps up and says, I've got it! and literally the world falls at his feet and worships his THEORY! You must notice that it's a T-H-E-O-R-Y! I didn't know theories were taken so seriously in science.

2006-10-08 06:52:43 · 13 answers · asked by Anonymous in Other - Science

I know that when sand gets in their little shell, they somehow make a pearl of it, but I don't know how exactly

2006-10-08 06:50:15 · 12 answers · asked by hex 3 in Biology

Am trying to find a site that has all of the different cuts of diamonds. Have found some but they dont list all of them, only the most popular ones or they have links to dealers and jewelers. Am looking for one with no links. Thanks

2006-10-08 06:48:48 · 2 answers · asked by Anonymous in Earth Sciences & Geology

and how does the austronaut's space ship stay in place? don't use big vocabulary please. Not very good with big words...

2006-10-08 06:47:48 · 13 answers · asked by Carly 2 in Astronomy & Space

2006-10-08 06:47:40 · 8 answers · asked by killerqueenbri 2 in Mathematics

2006-10-08 06:45:56 · 9 answers · asked by Anonymous in Chemistry

2006-10-08 06:44:15 · 4 answers · asked by Janice 1 in Mathematics

2006-10-08 06:43:33 · 35 answers · asked by Ro a 1 in Physics

2006-10-08 06:41:46 · 4 answers · asked by Rose 1 in Biology

Why does this form of metabolism (lactic acid fermentation) increase the shelf life of food? I know it creates an acidic environment where bad bacteria cant thrive, but I have to write a whole page on this simple question. *shakes fist*

2006-10-08 06:39:43 · 1 answers · asked by Anonymous in Biology

give more deteils

2006-10-08 06:38:07 · 2 answers · asked by gaurav_1431987 1 in Engineering

Phil and Linda decide to continue their game of catch by the lakeside. Phil stays on land, and Linda stands in a rowboat. When Linda throws the softball, to Phil, the rowboat moves away from the shore. THis can be most easily explained by:
a Newton's first law
b Newton's second law
c Newton's third law
d None of these

2006-10-08 06:38:02 · 6 answers · asked by sportsnut 1 in Physics

Ok according to Newtons Third law, for every action their is a opposite and equal reaction. Gravity pulls us down so according to Newton there must be a force that pulls us up, these forces have to have equal force. What 'If' we could create a force that is the opposite of gravity additional to already exsisiting force working against gravity. The action would no longer be equal to the reaction. So gravity wouldnt equal its opposite force. Newton says that all forces have to be equal but he was thinkng about natural forces, what 'If' we could create a artifcial force.

2006-10-08 06:32:15 · 13 answers · asked by Mark 2 in Physics

I am using two jacks placed apart on one end of the machine.
I think I do not need a full 75 ton jack for this. How much jack do I need?

2006-10-08 06:28:36 · 3 answers · asked by Dave 1 in Engineering

If the speed of an object is constant, then its velocity vector and acceleration vectors must be perpendicular.

How do you prove this?

2006-10-08 06:28:33 · 5 answers · asked by Anonymous in Mathematics

In science we have a lab...and I dont really know the answers to these questions.....(1)Why can't red blood cells reproduce...I put because they dont have a nucleus...(2)What kind of cell(between red,white, andplatelets) are the most numerous?....i put white blood cells....and thats it.....you dont need to answer both of them...

2006-10-08 06:28:26 · 3 answers · asked by jgbaek 4 in Other - Science

a. the same
b. less in water
c. twice as much in water
d. none of the above

2006-10-08 06:25:43 · 7 answers · asked by Joan S 1 in Earth Sciences & Geology