Science & Mathematics - 24 November 2007

, and some were able to evaporate, would the remaining water have a lower temprature? Explain.

2007-11-24 01:23:26 · 2 answers · asked by Anonymous in Physics

A person stands on a bathroom scale in a motionless elevator. When the elevator begins to move, the scale briefly reads only 0.76 of the person's regular weight. Calculate the acceleration of the elevator, and find the direction of acceleration.

2007-11-24 01:20:20 · 1 answers · asked by hahahahahaha 1 in Physics

You feel its heat but find that when you touch the bulb, it is not hot. Explain why you felt the heat from it?

2007-11-24 01:19:53 · 2 answers · asked by Anonymous in Physics

please show me how you work it out.
thank you. :D

2007-11-24 01:19:45 · 12 answers · asked by Anonymous in Mathematics

a patients drip bag is held over a stand… liquid flows from the bag to blood… giving them either food or drugs.. can someone Please please explain why bag is held up using water pressure and weight??

im in so much trouble with physics!! im a chemistry, biology nutter and dont understand physics! please please help!

2007-11-24 01:14:54 · 1 answers · asked by Anonymous in Physics

Here is the whole question. Darwin’s work built on the ideas of earlier scientists. Give two examples of scientists whose work laid the foundation for Darwin’s theory of evolution. Also, describe the nature of their contribution and how it affected the development of Darwin’s theory.

2007-11-24 01:13:05 · 4 answers · asked by x j 1 in Biology

Hello, is there any proof at all that there are UFO's out there in sky?
(This is suppose to be an argument and debate kind of thing).
There are lots of pictures showing that there are UFO's but what if they are false images. The UFO's didn't leave any proof but what if they are there???

2007-11-24 00:55:22 · 26 answers · asked by Anonymous in Astronomy & Space

...is this because the moon is full or some other reason?

Yesterday, I saw the moon while it was still daylight. Then, that same night, I noticed the moon was full.

2007-11-24 00:54:52 · 7 answers · asked by Anonymous in Astronomy & Space

2007-11-24 00:43:05 · 6 answers · asked by Anonymous in Astronomy & Space

if there is raw meat, will there ALWAYS be bacteria?? (in the home environment, not in some sort of special container or room or something!!)

2007-11-24 00:40:45 · 5 answers · asked by Anonymous in Other - Science

Hello,

We have an electric motor in a circuit and up to 2000rpm the circuit works very well, but if we increase the speed of the motor to more than 2000rpm, the circuit becomes instable just like for over 2000rpm the motor generates a noise or interference with the rest of the circuit.

Is there anyway to get the motor running at higher speeds and avoid these noises/interferences?

Thanks

2007-11-24 00:33:33 · 7 answers · asked by Wonderer 1 in Engineering

1. http://i6.photobucket.com/albums/y248/zfc/7L.jpg
2. http://i6.photobucket.com/albums/y248/zfc/8L.jpg
3. http://i6.photobucket.com/albums/y248/zfc/9L.jpg
4. http://i6.photobucket.com/albums/y248/zfc/10L.jpg
5. http://i6.photobucket.com/albums/y248/zfc/11L.jpg

2007-11-24 00:17:16 · 1 answers · asked by Anonymous in Botany

(talking of ice bergs)

2007-11-24 00:09:46 · 11 answers · asked by Anonymous in Physics

2007-11-24 00:02:20 · 3 answers · asked by jjimmygoo 1 in Biology

Also, what will be the hypothetical population of mars if NASA succeeds on terraforming mars?

2007-11-24 00:00:58 · 8 answers · asked by ozziesci 1 in Astronomy & Space