Science & Mathematics - 20 January 2007

Calculate the freezing point of 0.4 molal of MgCl2?

2007-01-20 05:56:38 · 2 answers · asked by ryang024 1 in Chemistry

2007-01-20 05:55:57 · 2 answers · asked by goring 6 in Astronomy & Space

Dont say " A human because somone crazy would go there" Imagine that you where a animal and you lived in the south pole. Id be a penguine cuz their cool

2007-01-20 05:55:06 · 10 answers · asked by Anonymous in Zoology

Two questions on COW ANATOMY

1. In the dentistry of a cow there is a wide gap on both the upper and lower jaw called the Diastema. I want to know what is it for?

2. In the dentistry of a cow the premolars and the molars on both jaws have flat ridged surfaces. I want to know why they have flat ridged surfaces?

Please give me as much detail as you can. Thank you XD

2007-01-20 05:54:49 · 5 answers · asked by Anonymous in Zoology

2007-01-20 05:51:16 · 1 answers · asked by Anonymous in Biology

The Sun is not star. It proves the the opposite?

2007-01-20 05:49:59 · 1 answers · asked by britotarcisio 6 in Astronomy & Space

ive seen quite a few times on wildlife programs over the years, that when a lion kills a hyena, they just leave the body and don't eat it.
why is this?

2007-01-20 05:49:06 · 30 answers · asked by junko k 1 in Zoology

Back in school I used to look at random things under them such as parking lot water, shoe dirt and garbage juice. I found many interesting things. What is the coolest thing you have looked at under extreme magnification? te hee this should be fun...

2007-01-20 05:46:41 · 5 answers · asked by ? 3 in Biology

the intensity of light 'L' measured in lumens, varies inversely as the square of the distance 'd'm from the light.

when the distance is 2m the light intensity is 250 lumens.
a) calculate the value of 'L' when 'd' is 2.5m.

(i got 312.5 for this but im pretty sure its wrong)

b) calculate the value of 'd' when 'L' is 90 lumens

2007-01-20 05:44:02 · 8 answers · asked by jenny 1 in Mathematics

2007-01-20 05:41:18 · 4 answers · asked by Expression 5 in Engineering

2007-01-20 05:39:15 · 7 answers · asked by arjun 1 in Medicine

2007-01-20 05:36:02 · 8 answers · asked by Anonymous in Mathematics

be very specific if you can, give reasons etc

2007-01-20 05:35:40 · 3 answers · asked by lasginny 2 in Medicine

how can we earn by cleverness in it?

2007-01-20 05:33:11 · 10 answers · asked by Anonymous in Mathematics

2007-01-20 05:31:16 · 5 answers · asked by Anonymous in Astronomy & Space

i am lost please help me figure this out

2007-01-20 05:30:59 · 11 answers · asked by mommie dog 1 in Mathematics

SET 1: x - y = -3, x - y = 4;

SET 2: x - y = 2, 3x -3y = 6;

SET 3; 2x + 4y = 2, x + 2y = 1.



A) one B) none C) Infinite

2007-01-20 05:29:12 · 5 answers · asked by Anonymous in Mathematics

If the formula is: log^b a=log a/log b how do I find the log^2 1000, rounding it to the nearest hundredth's

2007-01-20 05:27:44 · 5 answers · asked by Lisamarie B 1 in Mathematics

2007-01-20 05:26:46 · 2 answers · asked by goring 6 in Astronomy & Space

2007-01-20 05:24:40 · 3 answers · asked by goring 6 in Astronomy & Space

Your opinion. For the answer I think is most interesting and most true to yourself, I will choose best answer. :]

2007-01-20 05:24:18 · 23 answers · asked by Tay 2 in Earth Sciences & Geology

I heard that people who meditate clear their mind of everything. I heard sometimes they concentrate on something....i think...i dunno. How do you meditate anyway?

2007-01-20 05:19:22 · 12 answers · asked by Santard 1 in Paranormal Phenomena

2007-01-20 05:19:08 · 5 answers · asked by goring 6 in Astronomy & Space

I was looking for pics of the tropical rainforests to show my students and I came across this one:

http://sesd.sk.ca/ssanche/forest%20floor.htm

Do you see some kind of figure in the tree? what do u think it is?

2007-01-20 05:17:49 · 55 answers · asked by Ms h j 1 in Paranormal Phenomena

Aliens? UFO's? If so do you think they are gonna take over our planet? What do you think?

2007-01-20 05:17:42 · 10 answers · asked by S. Andrew 1 in Astronomy & Space

...Especially Grapes?
(for Some women)

Please give website on information..

2007-01-20 05:17:19 · 19 answers · asked by daniel4joyce 2 in Biology

What makes lemons good as bleaching agents?

2007-01-20 05:16:51 · 1 answers · asked by Anonymous in Chemistry

okay, we are doing some problems for physics..and im kind of lost...I need help because I have never taken a trig class in my life and this physics book I have doesnt help that much..heres the question.

1. A man walks 5 mi east, then 6 mi North and then 3 mi further East. Make a scale diagram of the man's path on graph paper.

I did this and got 14 mi.

part b) Calculate the straight-line distance from where the man started to where the man ends up. (Is this the same, grater than or less than your answer to part a.

I got 10 mi as my answer which is less than.

Now heres my trouble.

c) At his final position the man turns and points toward his starting point. What direction is he pointing? (Be clear and exact)

Now of course he is pointing southwest, but he wants the degrees west of south. And I have no idea how to get this, someone told me to use tangent, but im completely lost how tangent can get this for me...can someone help me out?

2007-01-20 05:16:22 · 7 answers · asked by axcryingxshame 1 in Physics

2007-01-20 05:15:37 · 6 answers · asked by quantum 1 in Physics

okay, we are doing some problems for physics..and im kind of lost...I need help because I have never taken a trig class in my life and this physics book I have doesnt help that much..heres the question.

1. A man walks 5 mi east, then 6 mi North and then 3 mi further East. Make a scale diagram of the man's path on graph paper.

I did this and got 14 mi.

part b) Calculate the straight-line distance from where the man started to where the man ends up. (Is this the same, grater than or less than your answer to part a.

I got 10 mi as my answer which is less than.

Now heres my trouble.

c) At his final position the man turns and points toward his starting point. What direction is he pointing? (Be clear and exact)

Now of course he is pointing southwest, but he wants the degrees west of south. And I have no idea how to get this, someone told me to use tangent, but im completely lost how tangent can get this for me...can someone help me out?

2007-01-20 05:15:30 · 4 answers · asked by axcryingxshame 1 in Mathematics