Physics - August 2006

from a standard pistol

2006-08-08 23:50:08 · 36 answers · asked by suck sess 2

e.g if room temperature is 20 deg c will it take the same amount of energy to reduce the temperature to 0 Deg c as it will to raise the temperature to 40 deg c ?

2006-08-08 22:27:55 · 10 answers · asked by Jumbo 1

2006-08-08 21:44:54 · 9 answers · asked by Anonymous

2006-08-08 20:10:47 · 11 answers · asked by James Marvin G 1

If it does exist, it can't be called non-existence. But if it does not, then everything exist, which can't be possible. So does it exist?

2006-08-08 19:49:08 · 16 answers · asked by kimegitee 1

2006-08-08 19:02:49 · 2 answers · asked by Lashun M 1

2006-08-08 18:42:19 · 12 answers · asked by Anonymous

an intelligent but superstitious man advances this analogy to argue that GHOSTS exist even though no one has ever seen one. how will you refute his arguement?

2006-08-08 18:17:45 · 9 answers · asked by Anonymous

I am 20, very intelligent, and very interested in physics. I have no physics background, and am taking a few courses coming up in the winter semesters. I would like to know some good books to learn the basic laws, theorums, etc.. without going into too much detail. I have the Oxford Guide to the History of Physics and Astronomy, but that is just like a physics Encyclopedia. Any help would be appreciated!

2006-08-08 17:51:48 · 5 answers · asked by gaybobbarker 2

instead of traveling at the speed of light just travel a little bit slower and isnt it possible?

2006-08-08 17:49:37 · 10 answers · asked by Anonymous

Well you have the Planck length, that could be the fundamental unit of length (we would have prefixes of coarse, so don't even try the argument about the measurement being inappropriate to use, it's like disregarding the metric system because you don't want to measure your height in picometers...)

Anyway, planck length for length, the speed of light for speed (or maybe the slowest possible speed derived from the shortest distance and time possible, I don't know)

I'm getting distracted, so just tell me your ideas.

2006-08-08 17:45:05 · 11 answers · asked by Anonymous

I am curious as to whether anyone has thought about the implications of this, if familiar with the idea. If not familiar please do not answer.

2006-08-08 17:01:02 · 13 answers · asked by Sam 3

According to the long-resolved so-called twin paradox, one twin flies away and returns younger than the other twin.

The resolution is that one undergoes acceleration, the other does not. (3 different inertial frames are considered, when SR applies to only two)

From this, I suppose one could conclude that the acceleration/deceleration *causes* one to age slower, no?

2006-08-08 16:33:55 · 7 answers · asked by Anonymous

2006-08-08 16:26:48 · 6 answers · asked by Anonymous

So the Twin Paradox is resolved by the fact it doesn't account for the three frames of reference for the traveler (e.g. the ac/deceleration at the turn). Relativity is not proven wrong (not proven right either, but that's a different issue). Fine.

Several explanations talk about the relativisitic doppler effect. For example, traveler sends a signal (like radar) every year (as measured by traveler). To homebody, it appears to come faster or slower due to doppler effect.

However, the relativistic doppler effect refers to the frequency of the wave (radar), not the frequency at which we turn the radar on and off.

The radar signal would be red or blue shifted, which *would* be determined by the relativistic formula. My claim is the "acoustic", not relativistic, doppler effect should apply to the frequency of messages (frequeny of radar turned on/off).

Agree?

2006-08-08 16:26:40 · 4 answers · asked by Anonymous

2006-08-08 16:03:32 · 1 answers · asked by discoveryforfun 1

2006-08-08 16:02:57 · 1 answers · asked by discoveryforfun 1

Does the light from ;ighters travel at the speed of light? What is it about light that makes it travel at 876,000 miles per hour (or whatever the limit of speed is)?

2006-08-08 15:49:49 · 9 answers · asked by Hymn 2

This is assuming that wormholes even exist.

I am also assuming that what people see on the sci-fi channel are special effects; that these special effects are made for the sake of Hollywood - and that they may or may not be scientifically accurate.

2006-08-08 15:39:51 · 11 answers · asked by Techguy2396 2

yes or no and y

2006-08-08 15:29:39 · 9 answers · asked by Anonymous

2006-08-08 15:14:03 · 15 answers · asked by TenaciousT 1

2006-08-08 14:56:16 · 1 answers · asked by and1player2 3

please explane

2006-08-08 14:52:27 · 4 answers · asked by Anonymous

2006-08-08 14:45:29 · 1 answers · asked by and1player2 3

2006-08-08 14:35:14 · 4 answers · asked by and1player2 3

I am in Honors classes at my school, and we are required to participate in our county science fair. I was wondering if anyone had any INTERESTING and EXCITING ideas for a project. It has to be at least on an 8th grade level, and preferably in the physics area of science. Here are some of my interests which might help come up with an idea: cooking, basketball, singing, softball, track, and music. (this might help a little) But if you are unable to come up with a physics based project, I will accept any help at all! Thank you.

2006-08-08 14:08:02 · 10 answers · asked by babygirl_tutti2t 1

or the top three questions , all time, fields of philosophy, cosmology, deepest most profound.

2006-08-08 13:43:50 · 14 answers · asked by Anonymous

I am not talking about the pressure in outer space or something but I mean the lowest pressure obtained artificially.

2006-08-08 13:38:38 · 5 answers · asked by meno25 2

I am not talking about the pressure in the core of stars or something but I mean the highest pressure obtained artificially.

2006-08-08 13:34:37 · 4 answers · asked by meno25 2

I am not talking about the temperature in the core of stars or something but I mean the highest temperature obtained artificially.

2006-08-08 13:26:40 · 3 answers · asked by meno25 2