Science & Mathematics - 28 August 2007

What is the mass number of an iron atom that has 31 neutrons?

2007-08-28 03:14:22 · 2 answers · asked by Anonymous in Chemistry

pls help me to make our written investigatory about this..
what is the pattern?
trish053093@yahoo.com
that'smy email add tnx... :)

2007-08-28 03:11:03 · 1 answers · asked by Anonymous in Botany

see above. im pretty sure its 1 buuut just to make sure..

2007-08-28 03:09:17 · 7 answers · asked by rock it ! 1 in Mathematics

im bored and have know life so I randomly thought of this question and haven't been able to sleep for 4 days and I need to know this answer. I'm desperate

2007-08-28 03:08:52 · 16 answers · asked by Anonymous in Geography

The top of two poles of height 20 m and 14m are connected by wire.if the wire makes an angle of 30 degree with the horizontal ,then what is the length of horizontal?

2007-08-28 02:56:05 · 6 answers · asked by gunaroopam r 1 in Mathematics

2007-08-28 02:55:39 · 5 answers · asked by iqnabeel 1 in Chemistry

It's about the application of Explicit Differentiation!!!
(Solving Maxima and Minima Pronlems)

Find the dimensions of a right circular cylinder of grestest volume which can be inscribed in a right circular cone with radius of 5in. and a height of 12in,

2007-08-28 02:51:34 · 1 answers · asked by Anonymous in Engineering

2007-08-28 02:50:23 · 4 answers · asked by Ana 1 in Geography

2007-08-28 02:43:59 · 8 answers · asked by Simone 1 in Astronomy & Space

2007-08-28 02:40:55 · 6 answers · asked by FRIEND 1 in Physics

2007-08-28 02:39:23 · 4 answers · asked by Anonymous in Weather

1) a boy is throwing two stones, one vertically up and the other vertically down with the same speed. the second stone experiences greater acceleration.

2)in order to hit a target, a man should point his rifle in the same direction as the target.

(no jokes please, really urgent)

2007-08-28 02:39:08 · 5 answers · asked by Anonymous in Physics

2007-08-28 02:38:42 · 7 answers · asked by nagar n 1 in Physics

2007-08-28 02:36:22 · 3 answers · asked by Anonymous in Botany

no jokes please, really urgent

2007-08-28 02:34:47 · 3 answers · asked by Anonymous in Physics

How come we all don't "generally" look alike?
And if we are descendants of a creature who can only live in a particular habitat, how come people of different natures and cultures are dispersed all over the world?
And if this is something that took hundreds of years to accomplish, how come there are still apes here today that aren't transforming into people? And haven't been for the past couple thousand years? (As there have been people here for the past couple thousand years)
Wouldn't evolution suggest that one creature "evolved" from another? seriously, why aren't they continuing to "evolve?" Wouldn't there be no apes left? Why are our "ancestors" still here?
What characteristics of humans do apes possess that other animals don't?
And where did the apes descend from in accordance with the big bang? And where did all the other animals come from?
Birds, reptiles, horses(donkeys, mules, ponies), elephants, bears. lions.....etc. Please tell me how did they get here? Life is so vast...

2007-08-28 02:29:59 · 16 answers · asked by BLI 5 in Zoology

I have read the following statement : Research cites that a young, growing forest--following harvest operations--is much better for the environment than an old growth stand of trees. Actively growing trees between 20 and 70 years old have the ability to sequester carbon, whereas trees beyond that age are carbon neutral and even begin to release carbon into the atmosphere. (this is an industry report) The question is are these facts true, false, misleading, incomplete. Could you also list sources. Thanks.

2007-08-28 02:23:54 · 2 answers · asked by Anonymous in Biology

I remember that e-mail about Mars two years ago. And it doesn't seem possible that it's that close again.

And, anyone have eclipse pictures? I got up early to watch it but there's too many trees, etc. here... and couldn't drive anywhere... it was disappointing!!

But I'm really looking forward to the meteor shower on the 31st/1st! The meteors were from around 4 A.D.... wow!!

2007-08-28 02:21:09 · 6 answers · asked by Loraine 4 in Astronomy & Space

Math Lovers?

Gerry wants to inflate an exercise ball. The ball has a radius of 15 inches. If a pump can push cubic inches of air every second, how many seconds will it take to inflate the whole ball.

- If you do find the answer, explain how you got the answer and I'll give you the best answer, points. and 5 stars*****!

2007-08-28 02:19:50 · 13 answers · asked by KayKay 2 in Mathematics

I know that it is a rock, but what is it called. I dont want to know what kind of rock it is, just what it is called...

2007-08-28 02:16:46 · 5 answers · asked by Anonymous in Earth Sciences & Geology

well in the midlands, uk. cloudy, light breeze, dry, approx 18 oC

2007-08-28 02:15:57 · 15 answers · asked by Anonymous in Weather

I saw a spider 2 days ago.....i wanted to squish it but my brother wanted to catch it......Apparently it was a fast moving thing because it got away before he could catch it, I have lots of pets in my house(3 dogs 2 cats) and if that was a poisonous spider i dont want my pets to get bit without me knowing......It looked like this:
Brown
It had layering circles on its back the colors layering were brown, yellowish brown then grey
And it was a VERY fast runner! My didnt see it but he said its not a brown Reculse... I live in north US......Any ideas? Is it a threat? Is it dead by now? Are my pets gonna eat it? Is it gonna bit my pets? PLEASE HELP!!!!! I CAN HARDLEY SLEEP!!!!!!!!!!!

2007-08-28 02:09:48 · 2 answers · asked by Jessica 1 in Zoology

In one direction from the parachute 2 km high, the angle of depression of two towns in line with the parachute are 8degrees40' respectively. How far are the two towns apart?

help me please? huhu

2007-08-28 02:07:37 · 2 answers · asked by Marie C 2 in Engineering

It was amazing as the moon started to go into a lunar eclipse, mars became visible, as if there were two moons. I took a photo, check it out.
http://www.fishnetbooks.com/mars.jpg

2007-08-28 02:04:31 · 14 answers · asked by Anonymous in Astronomy & Space

i am getting confused with the name. i am not sure whether the name i got is scientific name or the botanical name. i want to know the details of this plant.

2007-08-28 02:03:20 · 3 answers · asked by mark 1 in Botany

2007-08-28 01:52:11 · 1 answers · asked by Alex N 3 in Botany

2007-08-28 01:49:43 · 6 answers · asked by Buckminster 1 in Physics

Or are we really to blame.

2007-08-28 01:31:18 · 12 answers · asked by Anonymous in Earth Sciences & Geology

2007-08-28 01:28:17 · 3 answers · asked by Anonymous in Earth Sciences & Geology

2007-08-28 01:25:56 · 10 answers · asked by chaitali 6 1 in Earth Sciences & Geology