Science & Mathematics - 31 August 2007

A.3.51%
B.96.49%
C.28.5%
D.27.42%

2007-08-31 13:37:27 · 13 answers · asked by NONAME 2 in Weather

2007-08-31 13:35:22 · 4 answers · asked by Hotbody16 2 in Astronomy & Space

2007-08-31 13:33:10 · 14 answers · asked by mikell m 1 in Geography

Calculate...U with infinity on the top and n=0 underneath the union. {-n, n}

I was thinking all real numbers or is it looking for specific numbers.

Thank you.

2007-08-31 13:32:50 · 3 answers · asked by slaq_queen 1 in Mathematics

You are given a worked wooden item from an archaeological dig believed to date to during the last glaciation. As such, the artifact would be another piece of evidence in favor of the hypothesis that North America was settled prior to the end of the last glaciation. You analyse the artifact and find that it has a specific activity of 2.2 dpm/g. How old is the artifact?

2007-08-31 13:30:27 · 2 answers · asked by Reasons 3 in Chemistry

2007-08-31 13:30:09 · 6 answers · asked by dismissed987 1 in Astronomy & Space

I want to know if taking a low dose of propranolol (10 mgr) causes impotence and inability to gain erection or premature ejaculation.
thank you.

2007-08-31 13:23:12 · 11 answers · asked by Anonymous in Medicine

this is a experiment that I have to do before wednesday september 5th! the holes are very small (2-3 mm) and you have to mesure every 5 seconds the level of the water in the bottle to do a graph! the question that I have to anwser is what is the salt doing in this experiment !
thank you very much if someone can help me !!

2007-08-31 13:13:08 · 3 answers · asked by Anonymous in Physics

2007-08-31 13:09:10 · 4 answers · asked by Anonymous in Zoology

2007-08-31 13:06:50 · 3 answers · asked by Anonymous in Astronomy & Space

2007-08-31 13:03:08 · 7 answers · asked by Anonymous in Other - Science

2007-08-31 12:59:04 · 8 answers · asked by Mango 2 in Weather

2007-08-31 12:53:39 · 2 answers · asked by J G 1 in Weather

I asked this earlier, but no one seemed to be able to solve it so I will ask it again. I got it from the website http://www.mindchallenger.com

Answers are on the site.

This can be a little tricky and there is a simple way to solve it. All the information needed is here for those of you who think it is "unsolveable." The beauty of this puzzle is it appears unsolveable.

Tom and Sally are neighbors and Sally say to Tom, "I want you to guess the ages of my three children. The product of their ages is 36 and the sum of their ages equal your house number." Tom thinks for a minute and says, "I can't solve it. I need another clue." Sally says, "OK. My eldest daughter is doing the laundry." Tom says, "I know their ages." Do you?

2007-08-31 12:46:35 · 13 answers · asked by Anonymous in Mathematics

A ball with an original momentum of +3.5 Kg m/s hits a wall and bounces straight back without losing any of its kinetic energy.
The change in the momentum of the ball is :
a)zero
b)-3.5
c)7
d)3.5
e)-7

2007-08-31 12:43:00 · 2 answers · asked by Anonymous in Physics

could you do anything?

2007-08-31 12:30:54 · 32 answers · asked by Anonymous in Astronomy & Space

A dollar bill is about 15.5 cm long. If 6 trillion dollar bills were laid end to end around the Earth's Equator, how many times would they encircle the Earth? Take the radius of the Earth to be about 6378 km.

2007-08-31 12:28:16 · 4 answers · asked by Anonymous in Physics

I want to know which ones can cause you to get knockedut if your hit there because my area is unsafe so I want to beable to defend myself, without needing any classes, I just want to know pressure points so I can knoc the attacker out.

2007-08-31 12:26:22 · 1 answers · asked by Anonymous in Biology

A commuter train travels between two downtown stations. Because the stations are only 1.18 km apart, the train never reaches its maximum possible cruising speed. During rush hour the engineer minimizes the travel interval t between the two stations by accelerating for a time interval t1 at a1 = 0.100 m/s2 and then immediately braking with acceleration a2 = -0.360 m/s2 for a time interval t2. Find the minimum time interval of travel t and the time interval t1.

2007-08-31 12:23:41 · 1 answers · asked by surfing86 2 in Physics

how would you write this CuHCO3?

2007-08-31 12:21:36 · 4 answers · asked by Anonymous in Chemistry

2007-08-31 12:19:55 · 2 answers · asked by venita h 1 in Biology

11: (9/4)1/2
3 2 3/2 No solution


12: 811/2
3 1/9 9 No solution


13: (-81)1/2
9 -9 -1/9 No solution


14: -811/2
9 -9 -1/9 No solution


15: -(1/64)1/3
1/3 1/4 -1/4 No solution


16: (1/9)1/2
1 1/3 3 No solution


17: -(1/144)1/2
-1/12 1/12 -12 No solution


18: 161/4
1/2 4 2 No solution


19: -161/4
2 -2 -1/2 No solution


20: (-16)1/4
-1/4 4 -4 No solution

2007-08-31 12:19:50 · 5 answers · asked by kitara 1 in Mathematics

I need to graph this point slope equation I know the point are 4,1 I don't understand why the points are not -4,-1

2007-08-31 12:18:58 · 4 answers · asked by crwlnjeep 4 in Mathematics

2007-08-31 12:07:19 · 6 answers · asked by keith b 1 in Geography

I don't recall the answer to this.

If there is a black hole in the middle of the galaxy how was it formed?

2007-08-31 12:07:10 · 4 answers · asked by ItsMeTrev 4 in Astronomy & Space

What all number sets to which 15/3 belongs. What is the most specific set to which it belongs.

2007-08-31 12:06:37 · 4 answers · asked by Yellow Jello 2 in Mathematics

i heard that the planet is supposed to be passing through an asteroid tail or metor tail in the next couple days and its supposed to be really cool. Is it true and what day and time can I see it??

2007-08-31 11:56:03 · 5 answers · asked by Anonymous in Astronomy & Space

I read resently that our position in the universe was not a static one and that we are excelirating away from other galaxys etc. My question is how fast are we going and does everything else in the universe travel at the same speed.

2007-08-31 11:51:27 · 10 answers · asked by GRAHAM P 1 in Astronomy & Space

If one micrometeorite (a sphere with a diameter of 2.3 10E-6 m) struck each square meter of the Moon each second, how many years would it take to cover the Moon to a depth of 1.0 m? (Hint: Consider a cubic box, 1.0 m on a side, on the Moon, and find how long it would take to fill the box.)

2007-08-31 11:50:45 · 1 answers · asked by Anonymous in Physics

please show step by step on how to convert 3.375 cm^3 to m^3

2007-08-31 11:50:22 · 5 answers · asked by coolkenny45 2 in Mathematics