Science & Mathematics - 10 August 2007

The police are investigating an accident. They have determined that the mass of car A is 2275kg and the mass of car B is 1525kg. From the skid marks and date for the friction btw tires and concerte, the police determined that the cars, when they were locked together, had a velocity of 31km/h at angle of 43 degrees north of the eastbound street. If the speed limit was 35km/h on both streets, should one or both cars be ticketed for speeding?

2007-08-10 07:26:30 · 1 answers · asked by nick_zz 1 in Physics

what is the negative imoact of molten sulphur on environment

2007-08-10 07:19:40 · 1 answers · asked by nid1267 1 in Earth Sciences & Geology

2007-08-10 06:57:15 · 7 answers · asked by suzymopo 1 in Mathematics

I have a bearing I want to press into a piston and I need to cool it down using liquid nitrogen. Where can I find an industrial refilable or reusable spray unit to accomplish this task?

2007-08-10 06:55:26 · 4 answers · asked by Bart H 1 in Engineering

Reduce this expression to the lowest terms.

2007-08-10 06:53:45 · 10 answers · asked by Anonymous in Mathematics

It is hard to belive that space goes on forever. Is space like a giant sphere that just shot and gre in all directons? Is There an edge to space? Is the universe jjust like and atom or a particle of a GIANT world? Is the universe just a dream? Are we just like rats in a maze?

2007-08-10 06:52:53 · 22 answers · asked by Anonymous in Astronomy & Space

2007-08-10 06:46:07 · 10 answers · asked by evolutionary bloom 1 in Zoology

i recently bought a bookm containing maths problems some of which i find difficult is it ok to attempt it then look at the answer then come back to it the next day

2007-08-10 06:37:10 · 3 answers · asked by luvin_me_4_me 5 in Mathematics

I am not sure how to type out squared on the computer but here we go.... please show your work to and any explainations.

1) 9x(squared) + 5x + 3 = 0

2) 4x(squared) - 4x + 2 = 0

thanks

2007-08-10 06:35:01 · 2 answers · asked by Anonymous in Mathematics

I am not a scientist, so please forgive my lack of knowledge on this subject. But based on the premise that a group of organisms is said to have common descent if they have a common ancestor, would Adam (and Eve) qualify as a common ancestor? Is this at least a possibility according to this theory? If not, why? Thanks....

2007-08-10 06:33:58 · 10 answers · asked by whitehorse456 5 in Biology

In some missiles and satellite launch vehicles,different fuels are used in different stages.For eg in a launch vehicle used to launch heavy satellites use cryogenic engines in their upper stage.those stages use fuels different from the 1st stage.why cant there be a single stage launch vehicle?how does these stages separate from each other in flight.

2007-08-10 06:32:50 · 2 answers · asked by Alien 4 in Engineering

I need to water my venus fly trap with distilled water but teso only sells still water. Is this the same? If not where can I get distilled water?

2007-08-10 06:31:14 · 16 answers · asked by Anonymous in Botany

2007-08-10 06:30:19 · 11 answers · asked by Anonymous in Astronomy & Space

spirit of the Pharaon from boring attention and trials of evocation?

2007-08-10 06:30:01 · 9 answers · asked by ThanksBelit 2 in Parapsychology

Okay, here's the equation:

log(base 2)(24) - log(base 2)(3) = log(base 5)(x).

We're solving for x here. I get that you use the quotient rule.

Then you get:
log(base 2)(24/3) = log(base 5)(x)
log(base 2)(8) = log(base 5)(x)

But what do you do after that point and WHY do you do it (i.e. what rules say to do it that way)? THANK YOU SO MUCH!!! I'll pick a best answer TODAY!

2007-08-10 06:29:17 · 5 answers · asked by Anonymous in Mathematics

For example, in these pictures:
http://zvis.com/nuclear/dimg.php3?climax1,upkclimax
http://zvis.com/nuclear/dimg.php3?annie,upkannie

Or this video (2 min)
http://youtube.com/watch?v=non1QFZVE6w&mode=related&search=

I've notice there are 13 or 14 stripes in some pics.
They are caused by the explosion or they correspond to something else?

2007-08-10 06:24:29 · 4 answers · asked by Anonymous in Physics

2007-08-10 06:23:25 · 5 answers · asked by alyssa m 1 in Mathematics

2007-08-10 06:21:57 · 0 answers · asked by Alexander 6 in Physics

if so, how big are thye, and how many do we eat?!

2007-08-10 06:16:21 · 9 answers · asked by Anonymous in Zoology

I am having a hard time understanding the way it is explained in my text. I do know the basic of circuitry but am having a hard time figuring out the differences in these circuits.

2007-08-10 06:11:58 · 2 answers · asked by Kyle M 2 in Engineering

Does anyone know about it and what would be the best time to see it? I'm in southern California.

2007-08-10 06:02:18 · 8 answers · asked by dlnmllr 3 in Astronomy & Space

What are the advantages of using H-Frame structures?

2007-08-10 06:01:30 · 1 answers · asked by Anonymous in Engineering

2007-08-10 05:59:17 · 0 answers · asked by Anonymous in Earth Sciences & Geology

How cooloer is it in the water than at land?

2007-08-10 05:59:05 · 5 answers · asked by Roo 2 in Weather

Say one was given the following complex number in cartesian form, (2)-(2isqrt3) » a - bi. And one was told to transform it into polar form » rcis (theta).
Would one take the degree as 150, or -60. taking 150, will give the answer 4cis(5/6pi) and taking 60 will give 4cis(-1/3pi).

So which degree should one take, and why so?

2007-08-10 05:59:03 · 4 answers · asked by SSj4Monkey 1 in Mathematics

Can someone point out a procedure for this one? We want to show principle of levitation but not only using simple magnets we would to apply it to something that might make it float too.

^_^

2007-08-10 05:57:30 · 2 answers · asked by Jecko 1 in Physics

I know for example 3+5 is 3 plus 5 but how do i pronounce this one √5? square root of five?? five square root??
and i don't know anything about integral calculus...
The most exaustive the list is the better it is... =)
Thank you!!!

2007-08-10 05:56:53 · 3 answers · asked by cynical_edge 4 in Mathematics

2007-08-10 05:55:19 · 6 answers · asked by boa a 1 in Engineering

Where during the summer there is no snow, and during winter there is a fair amount?
thanks

2007-08-10 05:54:27 · 10 answers · asked by ♥ G 3 in Geography

then help me figure this out plz
1
--- = x, wat equals 2x?
1+1/a

2007-08-10 05:53:09 · 6 answers · asked by hUMOR*mE 2 in Mathematics