Physics - June 2007

I believe that eventually time travel will be proven to be possible. Sometimes people try to say that "if time travel to the past or future was possible, the world would be swarming with time travelers right now."

How do we know it isn't?

Anyways, offer your proof that time travel isn't possible if you are a disbeliever.

2007-06-20 07:53:17 · 8 answers · asked by Anonymous

I am looking for a way to not only know and understand Quantum Physics but to actualy put it to use i know a few people That have done some amazing things but untill i understand a few things they will not teach me any further..I have seen people not only walk on water but i have seen them walk thorugh walls .. Yes i know its sounds freaky and **** but its not its in all acuality. I understand more then they do they told me i just need the feeling of use and conception of understanding.. If you can help me in anyway to more so Get the Use party down im sure i can help you with more then you could ever imagine. bye the way understanding is only what you make of it and if you think that Eturnity is real then please do not even respond.

2007-06-20 07:48:37 · 3 answers · asked by kazapim 2

my brother did an experiment at school about a candle that u put it in a vase of water (the candle is lighted), then u put a tube on the candle, after a while the candle lights off ( no oxegen), and the waterlevel rises. So my question is: Why the water level rises a little after that the candle stops burning??

2007-06-20 07:35:28 · 3 answers · asked by lallous 1

Where do these electrons come from? What happens to the atoms they came from? Is there more electricity at the beginning of a conductor wire than at the end, since some has gone to sockets and receptacles? After the flow of electrons goes thru my house and everyone else's house, where does it go?

2007-06-20 07:21:38 · 3 answers · asked by Anonymous

I'm looking for explanations from people, links or copy and paste. Also I am interested in the aurora borealis mainly.

2007-06-20 07:16:16 · 3 answers · asked by Anonymous

2007-06-20 07:09:58 · 13 answers · asked by soeccentric 1

Government collects $300B in taxes.
Temperature of goverment employees
is 102F (assuming some moderate sweating).
AC units in government offices set to 70F.

How much $B worth of useful work govermnet can do?

2007-06-20 06:59:27 · 7 answers · asked by Alexander 6

If you can give me any informations for some materials important in engineering...Thanks

2007-06-20 06:51:13 · 4 answers · asked by Anonymous

Does it float? would an oil be considered an alkene or no? Im not sure if it floats, crystallizes, mixes or sinks...please help!

2007-06-20 06:49:00 · 1 answers · asked by Anonymous

it was already rinsed I was about to put it away withe the other clean dishes, it was wierd!

2007-06-20 06:21:07 · 19 answers · asked by criss 2

A)Power
B)energy
C)weight
D) height

devices that allow s us to multiply forces or change their directions are?
A) joules
B) watts
C) powers
D) machines

2007-06-20 06:20:10 · 4 answers · asked by Amy M 5

I am a VERY anxious person, and I was in the hairdressers earlier (don't ask, lol) and I was tapping the metal footrest thing against the wall under the mirror. Not *very* hard, but it was still touching the wall and I wasn't sure exactly how forceful it was.

The mirror is a little shorter than the height of the wall it's on, and is secured to the wall near the top and bottom.

I'm worried that somehow the mirror is going to fall off the wall, or something like that.

Is it possible for this to happen? I assume these mirrors are attatched firmly to the wall to prevent this happening... maybe...

Anyone? Cheers :o)

2007-06-20 06:13:05 · 3 answers · asked by splat626 2

2007-06-20 06:13:03 · 3 answers · asked by Anonymous

issopposobly 800 million estimated
microprocessor is Unknowm? can u help

2007-06-20 06:01:09 · 3 answers · asked by Anonymous

a 500 kg cart rolling at 10 m/s or a 50 kg cart rolling at 100m/s?

An objects energy due to its relative postion
A) potential energy
B) kinetic energy
C)power
D) effiency

2007-06-20 05:57:28 · 5 answers · asked by Amy M 5

2nd question....
when we multiply half the mass of an object by its speed squared we calculate its?
A) potential energy
B) Kinentic Energy
C) power
D) efficency

2007-06-20 05:54:50 · 3 answers · asked by Amy M 5

How to turn this feature of?
Preferably both ways?

2007-06-20 05:38:45 · 6 answers · asked by Alexander 6

2007-06-20 05:37:42 · 9 answers · asked by Sylvia G 3

...............................

2007-06-20 05:37:24 · 13 answers · asked by Anonymous

A silver wire (density = 10.50 g/cm^3) has a mass of 4.600 kg and a total resistance of 3.450 ohms. Determine the total length of the wire.

2007-06-20 05:25:24 · 3 answers · asked by Nate-dawg 2

If it takes 3400j to lift a rock onto a ledge, what power is required to lift the rock onto the ledge in 4 seconds?

2007-06-20 05:16:26 · 7 answers · asked by Amy M 5

Check the following question:

http://answers.yahoo.com/question/index?qid=20070620083741AAVYZuK&r=w&pa=FZptHWf.BGRX3OFMiTZWVY3y4lnrZlZDFCmdIzUqGojJ1ZctlxkRZ9QUFvkTffgAcA1mBTPFp40muukNTw--&paid=answered#RZcsX2S8Vjcv9ccfz0VGGJTmyzS0qZbfHvcQ1jHuYj9ZdncEPbLZ

Can in theory one increase the relativistic mass of a flywheel by spinning it, thereby increasing its gravitational field?

2007-06-20 05:10:57 · 6 answers · asked by Scythian1950 7

2007-06-20 05:04:38 · 4 answers · asked by vahid 1

abt the current and if you could explian to me in detail how its diffrent witn an ac motor

2007-06-20 04:58:16 · 1 answers · asked by Amy 2

Anyone remembers the Nobel Prize to recognize true Albert Einstein?
Does someone remember there existed a Nobel Prize posted in Sweden which was posted till the early 1990s, the Nobel Prize to recognize the true Albert Einstein? Albert Einstein in the textbook was found or believed to steal the identity of this person. There was even a model of the hands placed in the San Jose Convention Center in California to wait for this person. The rule was if anyone touched the statues of the hands and the bell rang, then that person was a match or recognized as a true Albert Einstein. The Nobel Prize was posted in Sweden. Anyone recalls this? This was very popular till the early 1990s. If it was withdrawn, then who and why did they withdraw it?

2007-06-20 04:57:02 · 3 answers · asked by Anonymous

a. –173°C
b. 32°C
c. 212°C
d. 373°C

2007-06-20 04:54:47 · 13 answers · asked by Anonymous

a. its mass
b. its shape
c. what kind of material it consists of
d. whether it is in the solid, liquid, or gaseous state

2007-06-20 04:50:45 · 7 answers · asked by Anonymous

How many volts of electricity is required to make a piece of silicon the size of a grain of rice explode? As in, the explosion strong enough to hurt the person holding it? (scratches, bruises[not likely], cuts, burns, whatever.......)
oh, and i'm not planning on a terrorist attack or anything, it's juz something i need for a nasty science report.

2007-06-20 04:46:30 · 3 answers · asked by Deadly Nightshade 2

a. These molecules are in constant motion, even in solids
b. The differences between the solid, liquid, and gaseous state of matter lie in the relative freedom of motion of their respective molecules
c. All molecules have the same size and mass
d. Matter is composed of time particles called molecules

2007-06-20 04:44:13 · 6 answers · asked by Anonymous

The numerical reading on the Fahrenheit thermometer _________________.

a. may be any of the above, depending on the temperature
b. is less than that on the Celsius thermometer
c. is greater than that on the Celsius thermometer
d. is equal to that on the Celsius thermometer

2007-06-20 04:42:37 · 7 answers · asked by Anonymous