Science & Mathematics - 29 August 2007

How are the scientists able to measure the distance of objects in space?

2007-08-29 09:44:38 · 11 answers · asked by Music Man 1 in Astronomy & Space

So heres the math problem..

Theres a farmer and he wants to get some cattle to increase his monthly profit. The trouble is, is that he has no room to put them. So he goes out and buys 2000 ft. of fence. He has a barn which is 80 ft wide and 160 ft long, however it is completely full of machinary and NO cattle can go in the barn. The question is, what way can he put the fence to get the MOST square feet , so he can put the most cattle in , and make the most money. Remember the cattle must fit in the fencing and they cant go in the barn however you could use 160 ft of the side of the barn as fencing. You can put the fencing in any shape but I think it is going to have to go into a square. thanxs :)

2007-08-29 09:43:30 · 5 answers · asked by brewer37 1 in Mathematics

2007-08-29 09:43:05 · 10 answers · asked by kaykay323 1 in Geography

I heard that, you know like when you look in a spoon everything is upside down, except we are the ones who are really upside down. Is this ture? So if an ET comes to earth we look like we are upside down.

2007-08-29 09:41:45 · 3 answers · asked by Andrew 4 in Earth Sciences & Geology

2007-08-29 09:39:50 · 3 answers · asked by Tammy 2 in Chemistry

my dad has been having a high calcium level and today they suggested he go see a surgeon about removing his parathyroid.. has anybody ever had this done and what are the risks?
he is always extremely tired/sleepy . that is the only symptom he's had and they said it also has to do with this.. any info would be greatly appreciated.

2007-08-29 09:35:14 · 1 answers · asked by green eyes 4 in Medicine

I saw a documentary that said that there are tribes in Bomaka who are known for their mind reading abilities.

It sounded very interesting and I would like to learn more but can't seem to find anything.

Any suggestions for me?
(keep it nice please)

2007-08-29 09:35:11 · 2 answers · asked by Reiki Chick 6 in Parapsychology

I know I should know this, but it slipped my mind
When I add or subtract polynomials, how do I know which sign to use?
Example problem: (I don't know how to do the squared and cubed, so I'll just write it)
(12c squared + 3cd-5d squared) + (6cd+2d squared)
I can simplify it, until I get down to figuring out what sign to use.
please help lol

2007-08-29 09:34:49 · 4 answers · asked by Ina 2 in Mathematics

A fellow that is SELLING says there is a unit that can be biult or bought that will allow a 3 phase (360 volts) eletric motor to be used with only 220 volts. Does anyone out there know if this is true? Since he is selling i am somewhat unsure.

2007-08-29 09:34:18 · 6 answers · asked by Zdaddysdinosaurs 5 in Engineering

DONT SAY ANYTHING ABOUT THE TOPIC

2007-08-29 09:31:08 · 4 answers · asked by Noel 1 in Weather

Simplify expression.

(x+h)^-3 -x^-3
__________
h


x^-1+y-1
_______
(x+y)^ -1



This one is hard
1+___1_____
1+ 1/ 1+ x


and this one

http://i51.photobucket.com/albums/f399/Raymondxv12/math.jpg

2007-08-29 09:30:13 · 2 answers · asked by Cowman 1 in Mathematics

1. (F-32) 5 over 9 =C
If F equals 50 what does C equal?

2. There is a math sign that is a ">" over "_" and one that is "<" over "_". what does it mean?

3. x I 0.5 I 1 I 2 I 4 I 5 I 10 I
y I 2 I 1 I 0.5 I 0.25 I ? I ? I
what is the rule? and what does 5 and 10 equal?
^^Sorry about the "graph" I can't make it any better...

thanks. also, please provide an explanation with your answer!

2007-08-29 09:23:21 · 3 answers · asked by NinjaX 2 in Mathematics

could it be that astronauts were experiencing 3 years away/outerspace but the people who keep track of them only recorded the journey to be 1 years?

2007-08-29 09:22:15 · 9 answers · asked by Mugen is Strong 7 in Astronomy & Space

2007-08-29 09:19:51 · 5 answers · asked by Anonymous in Geography

2007-08-29 09:14:25 · 3 answers · asked by deeman 1 in Geography

what is the balanced equation for this?

2007-08-29 09:13:50 · 3 answers · asked by Tammy 2 in Chemistry

(UK) I keep seeing small (about 12inch diameter) aerial/antenna/dish type things on the side of properties. What are they receiving/transmitting? They are flat and grey and puzzle me....

2007-08-29 09:13:44 · 3 answers · asked by fishears 2 in Engineering

If The Earth Spins 66000mph and an aeroplane is travelling 500mph OPPOSITE to the direction the earth is spinning and i am walkling 2mph in the SAME direction as the earth is spinning. Doesn't that mean im walking 66002mph and the aeroplane is only travelling 65500mph... Surely that means im faster than the plane? Lol sounds complicated. I worked this out when i was walking my dog with my dad and sister and saw an aeroplane overhead :D

2007-08-29 09:12:05 · 18 answers · asked by Nathaniel Wolfgang Amadeus 2 in Physics

2007-08-29 09:11:11 · 5 answers · asked by Anonymous in Engineering

what is the equation for that?

2007-08-29 09:11:08 · 3 answers · asked by Tammy 2 in Chemistry

answer is (2+ln(x))/(2x^(1/2))

no idea how to arrive there. thanks

2007-08-29 09:11:00 · 5 answers · asked by Anonymous in Mathematics

I just recently moved into a home in the woods and we are having a problem with spiders and other misc bugs that are now drawing in things that eat spiders, like scorpions. I've tried just regular bug spray (like RAID, etc), but I feel like I'm just treating the surface problem, because they always return.

Short of calling a professional, anyone have any particular suggestions of what to use? I want something that isn't going to keep my family out of the house for days or hurt any of my pets. I've never had this problem before, so any suggestions/remedies would be appreciated. Please be specific.

2007-08-29 09:09:33 · 3 answers · asked by Lunar Sarah 4 in Zoology

2007-08-29 09:08:22 · 5 answers · asked by Anonymous in Astronomy & Space

2007-08-29 09:06:59 · 4 answers · asked by whisper2ya 2 in Mathematics

Okay, I really need help with these problems on my Algebra homework.

Directions: Solve Each Formula for the indicated variable.
V=pi/3 r^2h, for h

Directions: Solver for x. State any restrictions on the variables.
a(x + c) = b(x - c)

I have another problem that goes under the first set of directions that I am stuck on.

S = (cursive L)w + wh + (cursive L)h, for w.

Any help would be appreciated. I would really appreciate if you add how to do the problems also.

2007-08-29 09:02:37 · 1 answers · asked by Anonymous in Mathematics

You can use ms word or a similar word processor's "search and replace feature" to delete the following characters first: +, j, and q. I tried to email this to myself in de-encrypted form, so I could access the links conveniently from my inbox. But it wouldn't go over the internet! You try it.


Bjiqbl+iogra+phy re: U+FqjO+s.

ht+tp://ca.gejoqci+ties.com/ge...

Book Reviqjews on B+udd Ho+pkqins’ “Witjn+ess+eqd.”

http://wwqw.tejqxtfi+les.coqm/...

http://w+ww.csqjicojp.oqrg/si/...

http://www.cqjomqbat+-diqarije...


End of info

2007-08-29 09:01:20 · 2 answers · asked by dinotheorist 3 in Other - Alternative

2007-08-29 09:00:21 · 2 answers · asked by Anonymous in Geography

what is the equation for that?

2007-08-29 08:59:43 · 7 answers · asked by Tammy 2 in Chemistry

EXPLAIN??

2007-08-29 08:59:32 · 5 answers · asked by Girl 1 in Mathematics

How do you do sig figs for this question:

(11.23+0.423+2.1)*3.7505

2007-08-29 08:58:46 · 5 answers · asked by Anonymous in Chemistry