Science & Mathematics - 28 January 2007

2007-01-28 03:37:55 · 5 answers · asked by Anonymous in Botany

2007-01-28 03:36:27 · 23 answers · asked by ROCKET 1 in Geography

2007-01-28 03:35:44 · 2 answers · asked by raiha q 2 in Earth Sciences & Geology

5x - ( x + 2 ) - 3 ( x - 4)

= 5x –x + 2 – 3x +12
= 4x +2 – 3x + 12
= x + 14

2007-01-28 03:34:57 · 7 answers · asked by donnam4863 2 in Mathematics

If you have a bag of marbles that contains either 10 white marbles or 5 white marbles and 1 blue marble, what is your probability of pulling out a white marble? What is your probability of pulling out the blue marble?

2007-01-28 03:34:18 · 7 answers · asked by andrew b 1 in Mathematics

2007-01-28 03:33:06 · 4 answers · asked by Anonymous in Mathematics

2007-01-28 03:30:09 · 5 answers · asked by Anonymous in Zoology

A category one has 74-95 mph and category 5 has >155 mph but what about 2,3,and 4?

2007-01-28 03:27:26 · 2 answers · asked by Anonymous in Weather

the enthalpy of fusion of ice is 6.02 kJ/mol. the heat of capacity of liquid water is 75.4 J/mol C. what is the smallest number of ice cubes at 0.0 C, each containing one mole of water, necessary to cool 750g of liquid water initially at 30C to 0.0C?

2007-01-28 03:27:04 · 1 answers · asked by mullen1120 1 in Chemistry

2007-01-28 03:26:23 · 11 answers · asked by mark s 1 in Medicine

if so, what is it..
x^2+3x-28=0

2007-01-28 03:25:24 · 8 answers · asked by clemmie 2 in Mathematics

Here's the question: A brass cylinder has a height of 3.54 cm and a diameter of 13 mm. What is its volume? What is its mass?

I have already found the volume (4.7cm^3) and it says I will need to use an experimental quantity to figure the mass. I'm not quite sure what that means...

2007-01-28 03:25:00 · 3 answers · asked by Anonymous in Physics

2007-01-28 03:24:21 · 1 answers · asked by yeraciba 2 in Biology

And why are there more fragments in the "small" bands of the gel then there are in the "long" ones.
Why can this technique of DNA sequencing only be used for small fragments of DNA?
Thank you VERY MUCH!!!

2007-01-28 03:22:58 · 2 answers · asked by Anonymous in Biology

I worked as an astronomer at a planetarium for about six years, and I used to get all kinds of questions. One of the most common was "where's the north star?" and "I thought it was the brightest star in the sky! Isn't it?"

How about it gang, how do you find the north star, and how bright is it? Please include references, or links, as I am asking this to help educate others on something that is a common misconception....

2007-01-28 03:21:52 · 5 answers · asked by ~XenoFluX 3 in Astronomy & Space

2007-01-28 03:20:28 · 3 answers · asked by Zefram 2 in Physics

Can anybody tell me the percentage amount of Potassium Citrate that is put into making Club Soda? The ingredient label on a bottle of Club Soda reads as follows: Carbonated Water, Potasium Bicarbonate and Potasium Citrate.

2007-01-28 03:19:35 · 1 answers · asked by evlme2 1 in Chemistry

2007-01-28 03:18:54 · 7 answers · asked by Zefram 2 in Earth Sciences & Geology

Ok...can someone show me the steps to solve this. I am having a brain cramp, and keep coming up WRONG.

7(x-y+z) - 3 (-2x-4y+1)

I know I am going to feel lame when I finally get it!!

2007-01-28 03:18:52 · 8 answers · asked by donnam4863 2 in Mathematics

2007-01-28 03:16:54 · 3 answers · asked by MMB 1 in Zoology

Would be grateful if you could help, I'm totally confused.
Cheers if you can help ;D

2007-01-28 03:14:21 · 8 answers · asked by Anonymous in Mathematics

you see a beutiful beam standstill or moving thanks to wind on a candle or you think of fire at large... where does that thing(yellow coloured licht beam) disappear when you extinguish it. please explain if you could!!!

2007-01-28 03:11:38 · 5 answers · asked by jenson t 1 in Earth Sciences & Geology

2007-01-28 03:06:33 · 7 answers · asked by Anonymous in Biology

has no absolute maximum and no absolute minimum

has an absolute maximum but no absolute minimum

has an absolute maximum and an absolute minimum

has no absolute maximum but has an absolute minimum

is correctly described by none of these

2007-01-28 03:05:32 · 5 answers · asked by Olivia 4 in Mathematics

The following weightings are for for my last three years at uni with the respective percenage mark:
35% = 49 %
10% = 63 %
55% = 51 %

How do I calculate my degree average with the above marks and weightings?

2007-01-28 03:05:08 · 1 answers · asked by tektonnic 2 in Mathematics

2007-01-28 03:04:21 · 15 answers · asked by ragunath r 1 in Astronomy & Space

how can you keep your fish from spoiling between fresh catches if you were in a desrted island?

2007-01-28 03:03:34 · 4 answers · asked by nia 1 in Chemistry

ln (sec e^x) + c ???

2007-01-28 03:02:49 · 4 answers · asked by Anonymous in Mathematics

2007-01-28 03:01:49 · 8 answers · asked by Anonymous in Physics

if not what was your solution?

2007-01-28 03:01:27 · 1 answers · asked by Anonymous in Mathematics