Science & Mathematics - 19 November 2006

Can anyone please explain in simple science how does the sun make your skin darker/tanner? Thx

2006-11-19 02:32:28 · 3 answers · asked by economiss 5 in Biology

2006-11-19 02:31:51 · 5 answers · asked by Peter W 2 in Chemistry

a)Explain how the disolution process of CaBr2 differs from that of glucose(C6H12O6)?
b)A 2.00M CaBr2 solution and a 2.00M glucose solution are both placed in a freezer whose temperature is -5C. which solution would NOT freeze? Kf=1.86C/M. WHY?

This is a bonus question for my chem class (8th grade) we are allowed to find the answer anywhere, then we have to (explain) present it to the class for bonus points. It could boost my grade to an A. PLEASE HELP if you can.

2006-11-19 02:30:06 · 1 answers · asked by mtta_girl 2 in Chemistry

why is democritus view of matter considered only a idea, while dalton view is considered a thoery?

2006-11-19 02:28:28 · 2 answers · asked by Crazy G 1 in Chemistry

y=(sinx/1-cosx)^2 derivative of this function

2006-11-19 02:24:56 · 6 answers · asked by zeck 1 in Mathematics

2006-11-19 02:24:29 · 12 answers · asked by Georgina R 1 in Other - Science

2006-11-19 02:19:36 · 5 answers · asked by MB 1 in Astronomy & Space

in maths ariea & volume counting any part

2006-11-19 02:19:02 · 10 answers · asked by Mahendra G 1 in Mathematics

2006-11-19 02:18:12 · 2 answers · asked by Anonymous in Chemistry

2006-11-19 02:16:46 · 1 answers · asked by elaiza f 1 in Earth Sciences & Geology

Problem #1
JKMO is a parallelogram
JM bisects angle OJK and angle OMK
OJ = x+5, KM = y-3
JK = 2x-4
a.Solve for x.
b.Solve for y.
c.Find the perimeter of OJKM.

Problem #2
The measure of one angle of a parallelogram is 40 more than 3 times another. Find the measure of each angle.

2006-11-19 02:16:38 · 3 answers · asked by Anonymous in Mathematics

2006-11-19 02:15:21 · 1 answers · asked by jerry_2oo2 1 in Engineering

2006-11-19 02:15:18 · 2 answers · asked by elaiza f 1 in Earth Sciences & Geology

2006-11-19 02:02:13 · 4 answers · asked by Mr MOJO123 2 in Earth Sciences & Geology

and successfully unfrozen

2006-11-19 02:02:10 · 2 answers · asked by predatorpio 3 in Chemistry

2006-11-19 01:58:31 · 8 answers · asked by ArskElvis 3 in Chemistry

2006-11-19 01:48:49 · 22 answers · asked by lilnatz33 1 in Astronomy & Space

2006-11-19 01:47:28 · 10 answers · asked by bhackett777 1 in Mathematics

these are the multiple choice question I got for homework:
Q.1. A chloride ion differs from a chlorine atom in having one-
(A) less proton (D) more electron
(B) more proton (E) more neutron
(C) less electron

Q.2. When a fluorine atom (2,7) becomes a fluoride ion, the.....
I atomic number of fluorine increases by 1
II atom loses one electron
III mass number of fluorine decreases by 1
IV atom takes on 1 negative charge

(A) I, II, III, IV (D) II,IV
(B) I, II, III (E) IV only
(C) II,III

Sorry for making your minds spin but I put up this homework because I wasn't at school yesterday and we are having monthly exams and none of my school mates are availabele for me to call, thanks in advance.(please give your answer with an explanation of how you got it, so I can understand)

2006-11-19 01:42:38 · 3 answers · asked by sayeda_candy 2 in Chemistry

2006-11-19 01:38:04 · 8 answers · asked by amir 2 in Mathematics

2006-11-19 01:36:48 · 12 answers · asked by Anonymous in Mathematics

2006-11-19 01:36:24 · 10 answers · asked by Anonymous in Astronomy & Space

2006-11-19 01:33:18 · 1 answers · asked by webitgrl 2 in Astronomy & Space

2006-11-19 01:32:33 · 9 answers · asked by Anonymous in Zoology

2006-11-19 01:31:43 · 8 answers · asked by sanjit ac 1 in Engineering

Can plants photosynthesize from sunlight that passes through a window? Can plants photosynthesize from light from a normal lamp?

2006-11-19 01:31:41 · 4 answers · asked by . 3 in Botany

2006-11-19 01:31:35 · 3 answers · asked by webitgrl 2 in Astronomy & Space

2006-11-19 01:29:20 · 6 answers · asked by Arasan 7 in Physics

Here is a link to an example of what I need: http://img.photobucket.com/albums/v705/linsauke/Image2.jpg


I desperately need assistance on this right now so anyone with a good heart and a time to spare, PLEASE help... thanks!

2006-11-19 01:27:33 · 4 answers · asked by Just Asking 2 in Mathematics

1 kg=___pounds?

2006-11-19 01:25:13 · 3 answers · asked by Farrah Lyana 1 in Physics