Science & Mathematics - 6 February 2007

How can I measure the depth of a water tank with apotentiometer? Tank is 8m deep!

2007-02-06 01:59:41 · 4 answers · asked by Anonymous in Engineering

2007-02-06 01:57:50 · 6 answers · asked by booieh 1 in Medicine

He is doing a rock tumbling experiment. We had purchased this for X-mas. He has always had this fascination with rocks and so when the science fair came up, wanted to give it a try. I think and think about it but I get as far as "How Rocks Transforms or From Rocks To"....then I think it doesn't sound right. He is only in the second grade ..I know... he is actually doing all the work but I would like a great title for the poster board thanks everyone who can help! :)

2007-02-06 01:54:22 · 6 answers · asked by diggeys 2 in Other - Science

nobody would believe me......


or do they have a nucleus??....

a reliable source please......
(T_T)..

and why...

2007-02-06 01:48:43 · 4 answers · asked by darkael08 3 in Biology

2007-02-06 01:48:10 · 8 answers · asked by Anonymous in Geography

2007-02-06 01:47:53 · 9 answers · asked by Butool H 1 in Biology

Is there a website where I can learn level 2 maths and take practice tests? I really need to sort this out before June and online is the easist way for me,

2007-02-06 01:47:18 · 4 answers · asked by Michele 3 in Mathematics

2007-02-06 01:46:59 · 1 answers · asked by gary g 1 in Botany

2007-02-06 01:46:35 · 7 answers · asked by ugk 1 in Biology

If a solution contains sulfate and chlorine anions, what preliminary test can be used to separate the two anions? Which anion is retained on the solution?

2007-02-06 01:46:16 · 3 answers · asked by cloudy 2 in Chemistry

2007-02-06 01:44:27 · 6 answers · asked by malissa y 1 in Zoology

2007-02-06 01:41:09 · 14 answers · asked by goring 6 in Astronomy & Space

A pollution-sampling rocket is launched straight upward with rockets providing a constant acceleration of 12.0m/s^2 for the 1st 1000m of flight. At that pt the rocket itself is in free fall. Whats the rockets speed when the engine cut off? Whats the max altitude reached by the rocket? Whats the time taken to get the max altitude?

2007-02-06 01:40:40 · 3 answers · asked by Morena 1 in Physics

2007-02-06 01:38:08 · 12 answers · asked by sam blues 1 in Engineering

2007-02-06 01:36:50 · 16 answers · asked by Anonymous in Medicine

What is the equation of the yz-trace for the plane 4x - 3y + z = 12?
A.
x = 3

B.
4x - 3y = 12

C.
-4y + 12z = 12

D.
-3y + z = 12

2007-02-06 01:35:15 · 7 answers · asked by MEB 2 in Mathematics

like if there was 68 degrees F. how many celsius?

2007-02-06 01:35:08 · 6 answers · asked by Dima S 1 in Other - Science

OK I was born on 12/14/77 @ 8:24 AM in Ohio (EST). If there was a person born on 12/14/77 @ 8:24 AM in California (PST) and one born 12/14/77 @ 5:24 AM in California, which on of the California people is the exact same age as me? The 8:24AM one of the 5:24AM one.

2007-02-06 01:34:21 · 5 answers · asked by Lisa E. 2 in Other - Science

a battery consists of five dry cells connected in series. if the voltage developed by each cell is 1.5 v, the total voltage developed by the battery is
a. 0.3 v
b. 1.5 v
c. 5.0 v
d. 7.5 v

2007-02-06 01:34:10 · 4 answers · asked by Lynn D 1 in Engineering

2007-02-06 01:34:00 · 3 answers · asked by goring 6 in Earth Sciences & Geology

2007-02-06 01:33:23 · 6 answers · asked by Jami 1 in Mathematics

2007-02-06 01:32:11 · 1 answers · asked by March Henna A 1 in Chemistry

how can you say arsenic is harmful
ill effects of arsenic

2007-02-06 01:32:10 · 6 answers · asked by Anonymous in Chemistry

have v discovered everything?

2007-02-06 01:32:09 · 16 answers · asked by White wizard 1 in Physics

college project

2007-02-06 01:31:07 · 2 answers · asked by Anonymous in Engineering

2007-02-06 01:29:35 · 17 answers · asked by harry c 2 in Mathematics

2007-02-06 01:28:53 · 4 answers · asked by Lynne 3 in Weather

Create a real-life situation that fits into the equation (x = 3)(x-4) = 0 and express the situation as the same equation

2007-02-06 01:27:03 · 4 answers · asked by vmd7878 1 in Mathematics

2007-02-06 01:25:31 · 2 answers · asked by Anca M 1 in Engineering

6b^4 -18b^3 -60b^2


Plus a word problem:

If one half a number is subtracted from five sixths of the number, and the difference is 6. WHat is the number ?

2007-02-06 01:24:44 · 9 answers · asked by CookFrNW 3 in Mathematics