Science & Mathematics - 29 August 2007

2007-08-29 18:53:29 · 4 answers · asked by presidentrichardnixon 3 in Astronomy & Space

the sum of 2 numbers is 24. 7 times the smaller number is the same as 5 times the larger number. find the smaller number.

2007-08-29 18:45:12 · 6 answers · asked by Anonymous in Mathematics

How would I go about becoming and air traffic controller? What's the pay? How much training is required?

2007-08-29 18:40:29 · 6 answers · asked by Anonymous in Engineering

why do we say Newton's Law and not principle while we say Archimedes principle and not law?

2007-08-29 18:28:58 · 2 answers · asked by avkd_sivakumar 1 in Physics

I don't get how it's formed....what the premise is ...(why and how are we finding pH from pKa, etc...)

I just don't understand it....can someone clear it up?

2007-08-29 18:13:15 · 2 answers · asked by Anonymous in Chemistry

Find the exact answers:

2cos^2 x - cosx = 0
0 <= x < 2(pi)

That first "x" is not connected to the exponent (it's just the cos variable). I don't know what to do! An explanation would be just lovely.

2007-08-29 18:11:21 · 5 answers · asked by Anonymous in Mathematics

how many ml is 60g of potassium nitrate

2007-08-29 18:08:36 · 2 answers · asked by Anonymous in Chemistry

I'm completely lost on these 2...

1. ln(5-2x)= -3

2. 2lnx=ln2 + ln(3x-4)

2007-08-29 18:06:51 · 4 answers · asked by popngirl_14 2 in Mathematics

Factor Completely.

1) ax+bx-a-b

2) c^3+c^2d^2-cd-d^3

Thank you so much.=)

2007-08-29 18:04:35 · 3 answers · asked by Anonymous in Mathematics

or some people write, 5+3 (2-9)^

how do you do that one too I recently posted a question and I finally understood it, I got 392 and its wrong

2007-08-29 17:57:12 · 9 answers · asked by Question Asker 1 in Mathematics

A jet airliner is cruising at a speed of 510 miles per hour at a bearing of N16W. There is a 77 mph crosswind striking it from a bearing of S42W. What is the resultant speed and course of the aircraft?

2007-08-29 17:56:48 · 2 answers · asked by Anonymous in Mathematics

2007-08-29 17:54:19 · 8 answers · asked by Anonymous in Zoology

since irrational numbers that never end and if you divide 3 by 17 im sure the numbers dont stop ? because i got to the thousandth and it didn't seem like it was going tno stop any time soon.

2007-08-29 17:52:46 · 6 answers · asked by ioaewjfkl 1 in Mathematics

I dunno how to write sqaured on the computer andt he / means divide

whats the answer and how do you do it?

2007-08-29 17:49:32 · 7 answers · asked by Question Asker 1 in Mathematics

if we round it to 10, it will have only 1 significant figure. If i round it to 10.0 it will have 3 of them.

2007-08-29 17:48:37 · 9 answers · asked by raj 2 in Physics

and give atleast two examples
:)

THANKS

2007-08-29 17:44:08 · 1 answers · asked by Faisal. A 1 in Biology

2007-08-29 17:43:39 · 5 answers · asked by Anonymous in Biology

While I'm completely obsessed with Grey's Anatomy, and this is a very old topic on the show, are there any people out there who get very aggrivated with Cristina's contempt towards Finn for being a veterinarian? Why do some people have this negative attitude towards veterinary medicine? It is in itself a medical specialty, and veterinarians study more than one kind of anatomy. It's a medical profession dependent entirely on your skills because the patient cannot speak for themselves. While Cristina can be funny, she can also be ... frickin annoying as hell. Veterinary medicine is noble and extremely gruelling. Her attitude sucks. And for those out there who take it upon themselves to accomplish the difficult task of pointing out the obvious to the world: yes, I do realize that Grey's Anatomy is just a TV show. I'm just using it as an example.

2007-08-29 17:43:19 · 4 answers · asked by Anonymous in Medicine

What is the biggest endothemic reaction we ever produced?

2007-08-29 17:42:22 · 1 answers · asked by cpc26ca 1 in Chemistry

Dirty minds: Referring to the ones in space.

2007-08-29 17:41:00 · 11 answers · asked by Bend the Zen 2 in Astronomy & Space

So, if energy can not be destroyed or created, then what is happening to the matter/energy consumed by black holes?

If black holes destroy energy/matter, then is it created/replenished by something else just as weird as they are...to keep it a constant amount, spewing it back into our universe? Is there such thing as a net amount of matter/energy? And would this amount of energy stay constant as the universe expands or contracts? Not sure of the merit of this last question, but is time or gravity being converted into energy or matter, or something else?...or is that where dark matter comes in?...where it perhaps get converted into the matter we all know and love?

2007-08-29 17:40:00 · 13 answers · asked by cpc26ca 1 in Astronomy & Space

A truck travels 14 blocks north, 16 blocks east, and 26 blocks south. What is its final displacement from the origin (magnitude and direction)? Assume the blocks are equal length.

2007-08-29 17:34:53 · 2 answers · asked by mai t 1 in Physics

im tryin too learn sumthin out of it.
has anyone had any experiances with it and then turned too christ ?
is it really of the devil or just evil 2 use ?
if anyone had any experiances with it please tell me thier stories about it could you ?
or know anyone who had it they could tell me about it thanks

2007-08-29 17:25:31 · 12 answers · asked by Anonymous in Parapsychology

i have seen it before. Kinda creepy.

2007-08-29 17:25:06 · 5 answers · asked by Kelvin 2 in Weather

i dont know what to do with the a and the b i though i would have to add but i dont know exactly its just ugh

2007-08-29 17:24:08 · 3 answers · asked by Anonymous in Mathematics

2007-08-29 17:10:53 · 3 answers · asked by Anonymous in Mathematics

readings if temperature is measured in kelvins? Why if degrees are measured for angles?

2007-08-29 17:07:10 · 7 answers · asked by lilys.petal 2 in Physics

so so so so lost show work if possible

2007-08-29 16:58:30 · 6 answers · asked by Anonymous in Mathematics

ive been searching for hours in my garden but i have only found one.. is there a certain time when they are the most present on the surface of the soil?

2007-08-29 16:56:31 · 4 answers · asked by Anonymous in Zoology

2007-08-29 16:56:16 · 2 answers · asked by sexyred1 1 in Mathematics