Science & Mathematics - 12 February 2007

i looked it up, but i still don't understand what it is. plz help.

2007-02-12 20:14:15 · 3 answers · asked by nybabyblu 6 in Physics

frequency of a signal? It's preferable to have a graph like what you get from an oscilloscope!

2007-02-12 20:12:57 · 4 answers · asked by I don't get it! 1 in Engineering

2007-02-12 20:10:01 · 23 answers · asked by VWat22 2 in Earth Sciences & Geology

2007-02-12 20:09:23 · 5 answers · asked by teck kim 2 in Biology

Specific time and motion to be carried out on various activities within large production facility.

2007-02-12 20:07:21 · 3 answers · asked by Sami 1 in Engineering

2007-02-12 20:05:51 · 1 answers · asked by teck kim 2 in Biology

(cot^2ø+cscø+1)/(cotø+tanø) = (cotø+cosø)

2007-02-12 20:03:31 · 2 answers · asked by turnip_heart331 2 in Mathematics

$100 dollars a farmer paid for 100 animals - Sheep were $10
Pig were $2 and Hens were .50c , What did she do

2007-02-12 20:02:58 · 4 answers · asked by Philip P 1 in Zoology

Is their a particular model or something I shoud know when buying for this purpose? I use medical grade cannabis for colitis(and the many ailments associated with it), anxiety and depression. THANK YOU!

2007-02-12 20:01:22 · 1 answers · asked by mattclaptongad 1 in Botany

I would like to use the flask as a fishbowl for my betta fish (His name is Betta-Galactosidase).

2007-02-12 20:01:19 · 2 answers · asked by Alex C 1 in Biology

What do you get if you convert 30 micrograms/m^3 to:
1) molecules/cm^3
2) ppm
3) ppb

What is the percentage of 1.3g/L or 1.3g/cm^3 ?

2007-02-12 19:59:11 · 2 answers · asked by Anonymous in Chemistry

2007-02-12 19:56:17 · 5 answers · asked by mehul trivedi 1 in Physics

2007-02-12 19:54:35 · 5 answers · asked by catmuffin 1 in Mathematics

2007-02-12 19:54:09 · 1 answers · asked by teck kim 2 in Biology

I want to PCR clone a gene from mRNA. I know about adding restriction sites to the primers but how far down from the stop codon should I look for a good primer from the mRNA sequence. i.e. what is the polyA tail sequence I should include in my PCR product?

2007-02-12 19:53:25 · 3 answers · asked by ADubya 2 in Biology

give me the acceleration and time values for the 1985 mexico citry earthquake. I want acceleration record as a input to earthquake analysis problem

2007-02-12 19:43:19 · 1 answers · asked by jindunil 2 in Earth Sciences & Geology

they live in australia

2007-02-12 19:40:26 · 13 answers · asked by phil12songs 1 in Zoology

2007-02-12 19:37:27 · 2 answers · asked by Chinni 1 in Engineering

2007-02-12 19:36:55 · 3 answers · asked by mallikarti 1 in Engineering

If the point P(13/14 , y) is on the unit circle in quadrant IV, then y=


anyone know how to even start to solve for this?

2007-02-12 19:34:25 · 6 answers · asked by Darkness 5 in Mathematics

how to calculate density into liters for Furnace oil / LDO

2007-02-12 19:32:47 · 4 answers · asked by Anonymous in Physics

What do you get if you convert 30 micrograms/m^3 to:
1) molecules/cm^3
2) ppm
3) ppb

What is the percentage of 1.3g/L or 1.3g/cm^3 ?

2007-02-12 19:32:40 · 1 answers · asked by Anonymous in Mathematics

Jo's collection contains US, Indian and British stamps. If the ratio of US to Indian stamps is 5 to 2 and the ratio of Indian to British stamps is 5 to 1, what is the ratio of US to British stamps?

A. 5 : 1
B. 10 : 5
C. 15 : 2
D. 20 : 2
E. 25 : 2

2007-02-12 19:28:36 · 4 answers · asked by becckkeeeme 1 in Mathematics

I'm writing a lab report for a lab excersize testing for the presence of macromolecules... I'm trying to figure out what these substances could possibly be - you don't need to be sure, and I would be more than happy if you gave more than one possible answer for each substance. Just looking for ideas as it is 2 am and I am coming up blank.

Substance 1:
Tested positive for the presence of; Protein, Starch, and Sugar.
Tested negative for the presence of; Lipid.

Substance 2:
Tested positive for the presence of; Sugar.
Tested negative for the presence of; Protein, Starch, and Lipid.

Thanks for any help you can provide!

2007-02-12 19:28:03 · 2 answers · asked by brooks b 4 in Biology

I'm writing a lab report for a lab excersize testing for the presence of macromolecules... I'm trying to figure out what these substances could possibly be - you don't need to be sure, and I would be more than happy if you gave more than one possible answer for each substance. Just looking for ideas as it is 2 am and I am coming up blank.

Substance 1:
Tested positive for the presence of; Protein, Starch, and Sugar.
Tested negative for the presence of; Lipid.

Substance 2:
Tested positive for the presence of; Sugar.
Tested negative for the presence of; Protein, Starch, and Lipid.

Thanks for any help you can provide!

2007-02-12 19:27:40 · 1 answers · asked by brooks b 4 in Chemistry

2007-02-12 19:27:30 · 8 answers · asked by james_ha 2 in Weather

If you look at ancient buildings (Roman etc) they are nearly always a meter or two lower than the current ground level, why is that? Do they sink with time or do they get covered up and buried. If they get buried does that mean that the surface of the earth is rising, that does not seem to make sense, the earth is not getting bigger.

2007-02-12 19:25:21 · 7 answers · asked by Nick C 2 in Engineering

i think its something like greater than or equal to but im not sure

2007-02-12 19:21:56 · 19 answers · asked by becckkeeeme 1 in Mathematics

rhine or main

2007-02-12 19:19:56 · 11 answers · asked by anil k 1 in Geography

2007-02-12 19:19:47 · 5 answers · asked by Anonymous in Zoology