Science & Mathematics - 16 September 2006

I know one is regular Sudafed and the other is Sudafed PE and I know pseudo can be made into meth and so far phenyl can't, but why? They are both ephedrine based. No I'm not a cook, just curiousity.

2006-09-16 06:38:07 · 5 answers · asked by Anonymous in Medicine

In a coordiplane plane, the plots (-3,2) (4,2) (4,-3) (-3,-3)

2006-09-16 06:35:42 · 2 answers · asked by lil_bon_bon_01 1 in Mathematics

I've always wondered, how does stomach acid compare to sulphuric acid in potency??

2006-09-16 06:34:38 · 8 answers · asked by Anonymous in Chemistry

I have read something on Wikipedia about the season spring and something said that the whole months of March, April, and May can be counted as spring, so I am asking if anyone agrees that all of March is spring.

2006-09-16 06:33:47 · 17 answers · asked by Brendan M 2 in Weather

2006-09-16 06:30:05 · 10 answers · asked by dconstruct6 1 in Physics

Half of the gear would be a very light plastic and the other half would be a very dense metal.

Is this possible ? The "dentures", dents of the gear would have to fit nicely. Quite difficult actually.

2006-09-16 06:29:35 · 7 answers · asked by Technotron 2 in Engineering

if possible some industrial example, even an example of decision tree is welcome

2006-09-16 06:25:35 · 3 answers · asked by Anonymous in Mathematics

2006-09-16 06:24:33 · 3 answers · asked by Anonymous in Chemistry

pi/6 or pi/3 or 5pi/6 or 2pi/3
HOW????????????

2006-09-16 06:22:07 · 2 answers · asked by Anonymous in Mathematics

2006-09-16 06:20:56 · 4 answers · asked by Z.E.R 1 in Medicine

find an equation of the line that is tangent to the graph of F and parallel to the given line:
f(x) = x^3 , 3x - y + 1 = 0.

2006-09-16 06:20:22 · 3 answers · asked by shocker2399 1 in Mathematics

2006-09-16 06:20:02 · 7 answers · asked by Donna 1 in Earth Sciences & Geology

cos x =0 or tan x =-1
HOW

2006-09-16 06:17:59 · 3 answers · asked by Anonymous in Mathematics

What website can show me what you call the fear of different stuff... for example, fear of enclosed areas is called clostrophobia

2006-09-16 06:17:23 · 4 answers · asked by Anonymous in Other - Science

2006-09-16 06:16:59 · 10 answers · asked by Anonymous in Physics

Remember the tube is a vacuum and the conditions include zero-gravity.

I guess my real question is will the object remain suspended in exactly the same location within the tube or will it stop in the same location regardless of the moving tube and end up colliding with the walls of this glass tube?

2006-09-16 06:16:46 · 8 answers · asked by Anonymous in Physics

For some painkillers, the size of the dose, D, given depends on the weight of the patient, W. Thus D = f(W), where D is in miligrams and W is in pounds.

What does the derivative of(140) = 3 means?
f^-1(140) = 3
not the inverse but the derivatve

2006-09-16 06:12:33 · 2 answers · asked by ? 1 in Mathematics

2006-09-16 06:12:11 · 8 answers · asked by Anonymous in Biology

2006-09-16 06:11:28 · 4 answers · asked by steel6ers 1 in Other - Science

2006-09-16 06:08:11 · 8 answers · asked by Anonymous in Astronomy & Space

What was it called?

2006-09-16 06:07:36 · 3 answers · asked by unknown girl 2 in Astronomy & Space

2006-09-16 06:07:29 · 11 answers · asked by Anonymous in Weather

im in middle sckool so tell me in an easy way.

2006-09-16 06:06:06 · 21 answers · asked by ernie 1 in Astronomy & Space

2006-09-16 05:59:31 · 19 answers · asked by Beaulieu 04 1 in Biology

2006-09-16 05:58:30 · 15 answers · asked by Ken G 1 in Mathematics

is it negative?

2006-09-16 05:56:53 · 8 answers · asked by fullmental 2 in Physics

when they could be working in a job that pays $8 an hour?

2006-09-16 05:55:32 · 9 answers · asked by Richard W 1 in Chemistry

2006-09-16 05:53:55 · 15 answers · asked by gunner n 2 in Biology

How important it is for scientists to have a belief, religious or otherwise, in order to do thier job in science?

Please differentiate between natural and social scientists.

2006-09-16 05:50:27 · 6 answers · asked by oracle 5 in Other - Science

2006-09-16 05:48:08 · 6 answers · asked by Roman 1 in Physics