Science & Mathematics - 21 February 2007

2007-02-21 23:47:43 · 5 answers · asked by Anonymous in Geography

2007-02-21 23:43:21 · 7 answers · asked by hitler.acharya 1 in Engineering

2007-02-21 23:35:42 · 6 answers · asked by Anonymous in Mathematics

We did an experiment, we had a frog's heart and put it in 3 different solutions, namely potassium chloride, sodium chloride and calcium chloride. We observed that the heart rate went up when it was immersed in sodium chloride anc calcium chloride, but it went down when in potassium chloride. What caused this increase and decrease in heart rate?

2007-02-21 23:34:04 · 7 answers · asked by Anonymous in Biology

this question is a chemicals

2007-02-21 23:32:55 · 1 answers · asked by Anonymous in Chemistry

2007-02-21 23:28:21 · 11 answers · asked by I'm blonde 1 in Zoology

2007-02-21 23:28:10 · 6 answers · asked by Anonymous in Biology

2007-02-21 23:27:02 · 11 answers · asked by Anonymous in Biology

2007-02-21 23:26:46 · 1 answers · asked by 2011 1 in Zoology

2007-02-21 23:26:30 · 7 answers · asked by Anonymous in Geography

2007-02-21 23:26:16 · 6 answers · asked by Anonymous in Engineering

I don't think a Rocket will cut it and Maybe it's time for new ideas. Is there anyone to take the honours and be the first test Dummy?

2007-02-21 23:26:02 · 7 answers · asked by Anonymous in Astronomy & Space

The earth rotates once every 24 hours, the moon doesn't rotate at all, leaving it a dark side, and a side we cannot see at all.

2007-02-21 23:25:27 · 9 answers · asked by viaduct 1 in Astronomy & Space

i want to know how to synthesis dye and any other information about it. if you know any site please tell me, it would be of good help...thanks

2007-02-21 23:25:00 · 1 answers · asked by tin 2 in Chemistry

2007-02-21 23:24:25 · 2 answers · asked by Anonymous in Medicine

2007-02-21 23:22:31 · 4 answers · asked by manoj d 1 in Geography

please help me I need to create a proposal for my investigatory in math, please w/ the limits of algebra, lower geometry, and a very few trigonometry. tnx!

2007-02-21 23:21:12 · 3 answers · asked by korryl_fgd 3 in Mathematics

please explain for the project of 5th standard student about particles of all substances

2007-02-21 23:21:09 · 4 answers · asked by Anonymous in Physics

2007-02-21 23:19:44 · 3 answers · asked by murugesh108 2 in Chemistry

tHE MEASURES OF THEANLGES OF A CERTAIN POLYGON FORM AN ARITHMETIC SEQUENCE. tHE LEAST MEASUREMENT IN THE SEQUENCE IS 128 DEGREES. THE GREATEST MEASUREMENT IS 172 DEGREES. FIND THE NUMBER OF SIDES IN THIS POLYGON.

HOW DO YOU DO THIS??? PROVE IT!!!

2007-02-21 23:18:05 · 3 answers · asked by Anonymous in Mathematics

2007-02-21 23:17:58 · 5 answers · asked by yongmunyee 2 in Geography

What is the next three numbers of this sequence:

8, 5, 4, 9, 1, _, _, _



=>State also how do you get it!

2007-02-21 23:17:19 · 5 answers · asked by kenneth_gayon 2 in Mathematics

Do you think that i will get a reward or something?

2007-02-21 23:09:17 · 39 answers · asked by Gimps Mind 2 in Mathematics

2007-02-21 23:06:35 · 4 answers · asked by danny s 1 in Physics

In sociology today, we had an odd request from our teacher. She told us we had fifty minutes to write an essay about everything we know about math. (After five minutes, she stopped us and asked us why we obeyed. That's the sociology part.)

It was an interesting question, and I'm actually a little sorry we had to stop. How would you have formed this essay?

I started off with the number 1 and defined the addition property so I could count all the natural numbers. Then I defined the subtraction property so we could have all integers. By this point, she stopped us, but I would have continued on to how addition begets multiplication, and division is reverse-multiplication and gets us our fractions. Then I would have defined exponents and radicals to make the irrational numbers, and finally square roots of negative numbers to make complex numbers. After that, I figure I probably would have run out of time.

How would you have written your answer to this? (Summary, please!)

2007-02-21 23:04:15 · 11 answers · asked by Anonymous in Mathematics

2007-02-21 23:04:11 · 9 answers · asked by CP 1 in Chemistry

2007-02-21 23:02:39 · 2 answers · asked by Anonymous in Medicine

What is Pumbers element? I cant seem to find it on the interent, maybe im not putting in the wrong words, but it just comes up with plumbing contractors..
Its part of my course work, and I cant find it anywhere! xxx

2007-02-21 23:02:10 · 8 answers · asked by biscuits 3 in Chemistry

How could gravity be used as a driving force, energy source or motor? any ideas? Do you think it should somehow be possible?

2007-02-21 23:01:49 · 6 answers · asked by freebird31wizard 6 in Engineering

just wondering if they actually do work to magnify the mind and bodies vibrations

2007-02-21 23:00:24 · 8 answers · asked by Anonymous in Other - Alternative