Science & Mathematics - 26 July 2007

Please help! I'm confused

2007-07-26 05:17:40 · 11 answers · asked by Gabriela R 1 in Mathematics

2007-07-26 05:17:22 · 5 answers · asked by Anonymous in Earth Sciences & Geology

It is true that the basic laws of physics say that nothing that has any mass can travel faster then the speed of light, but energy does not have any mass. So if you were able to surround an object in an energy bubble and maintain that bubble of energy for a prolonged period of time could you then propel the object beyond the speed of light and if so why isn't NASA working on building such technology, or is this still the realm of science fiction

2007-07-26 05:16:31 · 11 answers · asked by Anonymous in Physics

Please help! I'm struggling with this problem.

2007-07-26 05:15:15 · 15 answers · asked by Gabriela R 1 in Mathematics

I guess what I'm asking, is how far does electricity travel in a body of water?

2007-07-26 05:13:52 · 4 answers · asked by Anonymous in Weather

2007-07-26 05:02:31 · 5 answers · asked by galang 1 in Botany

Its the only day i can go what will be closed? Will we get free tickets??????

2007-07-26 04:58:07 · 4 answers · asked by Anonymous in Weather

As I understand it it means that nothing really exists unless a person is looking at it, all the atoms that make up any object could be at any point in the universe and come together when someone looks at it.
http://news.bbc.co.uk/1/hi/sci/tech/6914175.stm

Iv just tested this. I closed my eyes and touched a wall. Not looking at it and neither was anyone else because it was an inside wall, so therefore it should not be there. Of course it was.

Am I missing something here? Things dont just not exist if us humans dont look at them.
I must have got this wrong, could someone explain it please. In laymens terms please.

2007-07-26 04:56:15 · 11 answers · asked by futuretopgun101 5 in Physics

The question is :
The finish grade elevation is 149.33', the first floor elevation is 150', and the second floor elevation is 163.21'.

2007-07-26 04:53:15 · 5 answers · asked by jd_essa 1 in Engineering

It must like go in to a big pipe under your house/steet... but how does it get moved from there with everyone elses waste to the sewage plant.

And theres also no sewage plant near me that I know of.

And you can't smell waste when your walking on the street. Does it magically disappear?

2007-07-26 04:50:28 · 11 answers · asked by Narky 5 in Engineering

This is a bonus question for my math class in college. The professor's hint was 'the answer is approximately 10 letters.'

2007-07-26 04:44:32 · 8 answers · asked by wilkie123489 1 in Mathematics

cause u wasnt born then so i would like to know

2007-07-26 04:41:45 · 12 answers · asked by eddwoo07 1 in Astronomy & Space

Is it facing North or South when its waxing or waning?

2007-07-26 04:41:17 · 3 answers · asked by Miss 6 7 in Astronomy & Space

2007-07-26 04:41:10 · 3 answers · asked by Anonymous in Other - Science

2007-07-26 04:40:42 · 8 answers · asked by Anonymous in Mathematics

2007-07-26 04:40:41 · 13 answers · asked by T W 2 in Astronomy & Space

the question asks, "Find all points (r, (pheta)) at which there is a vertical tangent line to the graph of r=1+sin (pheta)." Is the answer "x=cos(pheta) + sin (pheta)" ?

2007-07-26 04:38:05 · 4 answers · asked by Kayla G 1 in Mathematics

2007-07-26 04:34:06 · 4 answers · asked by Anonymous in Engineering

I need a good explination.
Thank you!

2007-07-26 04:18:53 · 12 answers · asked by Love. 5 in Astronomy & Space

ie. no thrust of any kind

2007-07-26 04:15:56 · 6 answers · asked by Olof 2 in Physics

Hi,
anyone who might know the Denver gardner PA8 piston pump? if so where can i source it's operational specs from? am struggling doing so on the search engines.

I'm using it to pump a slurry but want to know what the maximum pressure is that it can handle before being damaged. And does the spefici gravity (aka density) of the slurry i'm pumping make a differnece in the pumps pressure handling abilities?

Any advice would be much appreciated.

2007-07-26 04:08:20 · 1 answers · asked by 12th Warrior 1 in Engineering

2007-07-26 04:07:24 · 2 answers · asked by norwin r 1 in Astronomy & Space

The video can be in any format.

2007-07-26 04:01:27 · 8 answers · asked by dabidave 1 in Paranormal Phenomena

2007-07-26 03:59:12 · 30 answers · asked by tweety r 1 in Mathematics

Two railroad cars, each of mass 6520 kg and traveling 95 km/h, collide head-on and come to rest. How much thermal energy is produced in this collision?

2007-07-26 03:57:18 · 4 answers · asked by katherine g 2 in Physics

2007-07-26 03:55:25 · 3 answers · asked by Anonymous in Other - Science

2007-07-26 03:48:51 · 10 answers · asked by Anonymous in Astronomy & Space

What in the world has happened to this tree? It is next to 3 other pines, but this is the only with the problem. The holes start at the very bottom and go up pretty far, they are well formed and some even in straight lines. They are only about 1/4 inch deep. Some of the holes have caused tons of sap to seep out. Here are some images:
http://i174.photobucket.com/albums/w113/Krispy79/DSC00579.jpg
http://i174.photobucket.com/albums/w113/Krispy79/DSC00582.jpg
http://i174.photobucket.com/albums/w113/Krispy79/DSC00583.jpg
http://i174.photobucket.com/albums/w113/Krispy79/DSC00580.jpg

Is it infested with something? If so, what is it…should the tree be removed? If it’s disease will it spread?

2007-07-26 03:44:47 · 2 answers · asked by Krispy 6 in Botany

They are in my mother's flower bed; however, she does not remember planting them. I assume they are weeds, but she does not want to pull them out until she knows.

The first one has spiked leaves and is growing upward only, here are 2 images:
Top View- http://i174.photobucket.com/albums/w113/Krispy79/DSC00587.jpg
Side View- http://i174.photobucket.com/albums/w113/Krispy79/DSC00588.jpg

The second one has smoother leaves and is growing outward and upward, here are 3 images:
Top View- http://i174.photobucket.com/albums/w113/Krispy79/DSC00584.jpg
Side View- http://i174.photobucket.com/albums/w113/Krispy79/DSC00586.jpg
Flower/bud- http://i174.photobucket.com/albums/w113/Krispy79/DSC00585.jpg

Any ideas or places I can search would be great.

2007-07-26 03:42:10 · 3 answers · asked by Krispy 6 in Botany

2007-07-26 03:40:16 · 12 answers · asked by Anonymous in Mathematics