Science & Mathematics - 21 August 2007

What is the best UFO/alien/abduction/paranormal site on the web? I'd like a site that deals in fact more so than here say.

2007-08-21 16:59:59 · 9 answers · asked by thatguy 1 in Paranormal Phenomena

Would you let a proffesional doctor remove your arm to donate it to a very ill 90 year old grandma for 87k cash?

2007-08-21 16:57:43 · 9 answers · asked by mike j 1 in Medicine

What are the domain and range of the function
f(x)=1/(sq. root of(9-x^2))???

2007-08-21 16:53:21 · 5 answers · asked by Anonymous in Mathematics

1) 0.3[-6]
2) -square root sign wit 6 inside
3)-0.4 (=)(>)(<)0???

2007-08-21 16:50:22 · 4 answers · asked by Chloee((: 1 in Mathematics

why

2007-08-21 16:49:58 · 7 answers · asked by cookies 2 in Astronomy & Space

If i were to be traveling at the speed of light or near the speed of light for about one minute, how much Earth time has passed in that one minute i was traveling at or close to the speed of light.?

2007-08-21 16:46:49 · 9 answers · asked by ? 2 in Physics

2007-08-21 16:45:47 · 14 answers · asked by Tracie C 1 in Geography

How do I find the acceleration of Pluto towards the sun if I have the mass of pluto ( 1.196 x 10^23 kg) it's orbital radius from the sun ( 5913.5 x 10^8 m) and it's planet radius ( 1.65 x 10^6).

Sun's mass: 2 x 10^30 kg
Sun's radius: 696 x 10^6

2007-08-21 16:43:28 · 2 answers · asked by Lucy A 1 in Physics

1. Constant temperature and volume
2. Type of gases - helium, neon, carbon dioxide, oxygen, nitrogen and hydrogen

2007-08-21 16:40:30 · 5 answers · asked by Kevin K 1 in Physics

what does 1/3 mean, on the volume of a pyramid? is it 1 divided by 3? or is it 1/3 as a fraction?

2007-08-21 16:39:23 · 8 answers · asked by . 4 in Mathematics

I got to 15/60*40+24/60*220/60. Is that right....please explain how to solve 1/4*2/3+2/5*11/3

2007-08-21 16:36:46 · 5 answers · asked by Dee 1 in Mathematics

2007-08-21 16:35:14 · 4 answers · asked by Derek B 1 in Mathematics

With an entire house as free range why do flies have to single out and annoy you? Why do they always dive bomb irritating places like your ears while you are trying to sleep? I'm serious.

2007-08-21 16:33:19 · 2 answers · asked by mudpuppie_80 4 in Zoology

for example..

300 KPA to mL

or vis-versa

2007-08-21 16:32:53 · 6 answers · asked by Anonymous in Chemistry

ESTIMATE: The angular acceleration a frisbee undergoes while someone is throwing it (i.e, from rest to the instant it leaves their hand).

2007-08-21 16:32:36 · 1 answers · asked by Anonymous in Physics

Two carts on a level track collide head-on. After the collision, cart 1 is completely at rest, and cart 2 has reversed direction. Which cart’s momentum changed by the greatest amount during the collision? Or did both carts’ momentum change by the same amount? Explain.

2007-08-21 16:31:36 · 2 answers · asked by Anonymous in Physics

what if earth was stuck exactly between two gravitational pulls, both of equal force

2007-08-21 16:27:18 · 5 answers · asked by coldfire_blacksheep 2 in Astronomy & Space

In a fossil I found a few cells looking like Purkinje cells, but I am not sure. Can anyone ascertain them
for me? Thank you so much. Their pictures are at:
http://www.wretch.cc/album/show.php?i=lin440315&b=13&f=1588634752&p=3
Sincerely yours,
Lin Liangtai

2007-08-21 16:24:47 · 4 answers · asked by lin440315 2 in Medicine

There are 2 binary comp of Hg and O. Heating either of them results in the decompostion of the cmpd, with O gas escaping into the atmosphere while leaving a residue of pure Hg. Heating .6498 g of one of the cmpd leaves a residue of .6018 g. Heating .4172 g of the other cmpd results in a mass loss of .016. Determine the empirical formula of each cmpd.
Please show the work.

2007-08-21 16:23:54 · 3 answers · asked by Krazym0nkey 2 in Chemistry

I received an email stating that on August 27, 2007 at approximately 12:30 am it will look like the Earth has 2 moons. Apparently MARS will look like a moon in our night time sky. Mars will be at it's closest point to Earth and we won't see this again in our lifetime....

2007-08-21 16:21:59 · 12 answers · asked by Anonymous in Astronomy & Space

ok heres the question:

whats the boiling point of water in deathvalley,claifornia && in denver, colorado? Are they different or the same?? if different then why??
plz help!!!!!

2007-08-21 16:21:59 · 8 answers · asked by cutiepie15 1 in Earth Sciences & Geology

does that make sence.. i dont know how many spaces to move the decimal.. that and im trying to find how many molecules are in 5.0 micrograms of aspartame

2007-08-21 16:21:20 · 4 answers · asked by rebc 1 in Chemistry

I am contemplating whether I should go to a foreign medical school in the carribean or go to a Osteopathic medical school if I can't get into a "regular" US medical school. But do you think that patients care?

2007-08-21 16:20:51 · 6 answers · asked by answers 1 in Medicine

In the following, choose the answer with the correct number of significant figures: 4.28 / 81 equals?

A. 0.05284
B. 0.0528
C. 0.053
D. 0.05
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The following description uses accepted SI notation and punctuation: 1 mol = 1 x 1012 nmol, true or false?
---------------------------
The following description uses accepted SI notation and punctuation: 1 mol = 1 x 109 mmol, true or false?
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And please tell me why if you can.

2007-08-21 16:18:48 · 2 answers · asked by Anonymous in Mathematics

41. Mass of solid 18.325
Volume of water in cylinder 10.00 cm^3
Volume of water + solid 16.80 cm^3
What is the density of the solid?
a)0.372g/cm^3
b) 1.09 g/cm^3
c) 1.83 g/cm^3
d) 2.69 g/cm^3

42. A gold brick is 0.958 cm high, 2.020 cm wide, and 4.o cm long. What is its volume?
a) 7.7 cm^3
b) 7.74 cm^3
c) 7.74064 cm^3
d) 8 cm^3

45. What quantity of silver ions is obtained from 3.00 g of AgNO3?
a) 0.0177 mol
b) 0.0385 mol
c) 26.0 mol
d) 56.6 mol

46. What is the volume of 2,50 mol of varbon dioxide at STP?
a) 22.4 L
b) 44.8 L
c) 56.0 L
d) 110.L

47. Which quantity of carbon is contained in 0.15 mol of benzene, C6H6?
a) 0.15 mol
b) 0.90 mol
c) 12 mol
d) 18 mol

2007-08-21 16:16:31 · 2 answers · asked by ashley t 1 in Chemistry

then we can say that at any point in the universe we are at the absolute centre?

i.e the earth is in the centre of the universe and so is the whirlpool galaxy (ehich is very very far from earth)
what do you think?

2007-08-21 16:15:56 · 3 answers · asked by Dr. Phil 3 in Astronomy & Space

In the problem,

"y=6 cos x", do I just find the integral of "cos x" or do I do something with the 6?

2007-08-21 16:14:52 · 3 answers · asked by Muffins 1 in Mathematics

A new concept for a time machine could possibly enable distant future generations to travel into the past, research now suggests,
here is the link,
http://news.yahoo.com/s/livescience/timetravelmachineoutlined;_ylt=ArMint7iz1Ld6wg8vufUfWfq188F
another one;
http://www.livescience.com/strangenews/070820_time_machine.html,
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the concept of time travel can be categorized as mythology&
folklore?

2007-08-21 16:11:38 · 15 answers · asked by kokopelli 6 in Paranormal Phenomena

my daughters homework

2007-08-21 16:11:18 · 7 answers · asked by Hillbilly 2 in Mathematics

The average salary of 5 employees at Toys 4 All is $35,000, but the average of these 5 employee's and their manager's salary is $41,000. Based on this information:

How much does the manager earn each year?

What is the total cost for Toys 4 All to raise the salaries of the 4 employees to $40,500?

Toys 4 All increased the manager’s salary to $80,000. How does this new change affect the mean salary of the 6 people (1 manger and 5 employees)?

2007-08-21 16:07:53 · 4 answers · asked by angel 1 in Mathematics