Physics - May 2007

2007-05-31 09:59:37 · 13 answers · asked by Anonymous

Why is it that time travel is based on the speed of light? Is time related to light?

2007-05-31 09:19:47 · 6 answers · asked by Stev 3

Why are the primary colors of light red, blue, and green, but the primary colors of paint or red, blue, and yellow? Shouldn't they be the same, since the paint simply reflects light of the same color?

2007-05-31 09:01:02 · 5 answers · asked by Rick K 6

Do you believe that the problems addressed in the Heisenberg Uncertainty Principle can be overcome?

2007-05-31 08:33:42 · 5 answers · asked by Rance D 5

If a person is freefalling from an insane height, lets say 4000 feet. When landing into water (maybe the middle of the ocean), is the surface tension powerful enough to kill?

2007-05-31 08:25:14 · 8 answers · asked by Jared N 2

2007-05-31 07:37:24 · 6 answers · asked by Asheera 2

Positronium is hydrogen-like atom in which
proton is replaced with positron.

Ionization energy of hydrogen is 13.6eV.

2007-05-31 07:28:08 · 3 answers · asked by Alexander 6

under normal conditions

2007-05-31 06:58:35 · 3 answers · asked by Alexander 6

2007-05-31 06:54:44 · 6 answers · asked by Matt I 2

2007-05-31 06:27:28 · 12 answers · asked by cOO 2

Plz solve me the following, with elaborate explanations if required (b’coz of the lack of diagrams).




1) Determine the proper length of a rod if in the laboratory frame of reference its velocity is v = c/2, the length l = 1m, and the angle between the rod and its direction of motion is θ = 45°.



Ans: l’ = l √ {(1- v²sin² θ/c²) / (1 - v²/c²)} = 1.08m

2007-05-31 06:15:15 · 1 answers · asked by V.D. 1

...will the sun turn into ultra-cold plasma?


http://en.wikipedia.org/wiki/Plasma_%28physics%29

2007-05-31 06:12:56 · 4 answers · asked by Roy Nicolas 5

I was wondering why with my bike i can ride many kilometers without getting so tired, and if i would go running or jogging the same distance i would be exhausted. Why is this? is running so ineffective?
Thanks!

2007-05-31 06:03:21 · 5 answers · asked by Ludovico 2

2007-05-31 05:47:12 · 1 answers · asked by abdullal f 1

Apparently this was a topic of discussion on the radio. My husband asked me this, and I honestly don't know. He says that logically, because there are more people on earth, and because the earth has been struck by meteorites that the earth should be heavier; if so the additional mass would increase the gravity of the earth.

2007-05-31 05:41:00 · 11 answers · asked by Muskratbyte 3

2007-05-31 05:12:46 · 4 answers · asked by Anonymous

We all know that in light can be treated as particles or waves.

We all also know in wave mechanics, a matter can also be treated as a wave. That is, an object, for some reason I do not know, can become a wave.

If that is the case, can there be another universe existing with us, in the same space, but in a different frequency? The universe will be an existence but in a different frequency. Likewise, can there be many universes all existing in the same sport, but all in many freqencies? After all, we are only waves.

2007-05-31 05:09:26 · 5 answers · asked by Marked 2

2007-05-31 04:52:18 · 10 answers · asked by Hellboy 1

F1 is 600N, 70degrees..F2 is 400 N, 20 degrees...and F3 is 500N, 60 degrees.

2007-05-31 03:16:59 · 2 answers · asked by mitlilkizbi 2

2007-05-31 03:01:55 · 1 answers · asked by Mukesh Dak 3

2007-05-31 02:02:08 · 16 answers · asked by Anonymous

2007-05-31 01:59:24 · 2 answers · asked by E=mc² 3

hi,

i am basically a computer student, but im always curious about physics and its concepts...

during my lunch i was just thinking what difference would it make if something like ( electron or for that matter some object say a plane ) traveled at the speed of light or even more ie., 3 * 10^^8 meters/second. will any laws of physics change from the normal situation which we are in and this DIFFERENT SITUATION.

please help me out in understanding this physics concept...

2007-05-31 01:48:56 · 7 answers · asked by ravi_shankar 1

why do we put a piece of metal on a dead persons stomach my mum says its so they stimach doesnt blow up is this true

2007-05-31 01:34:08 · 6 answers · asked by essi 1

Does anyone in this field have thoughts to instruements to test this theory. I believe this is accurate but science requires proof. the earth and planets above a given diameter[ to be determined] are all hollow. Serious help please?

2007-05-31 00:35:05 · 5 answers · asked by james h 2

Like conductor examples are copper and silver what are the examples of an electrical resistor

2007-05-30 23:14:40 · 10 answers · asked by Molly me 4

I'm just curious.

2007-05-30 23:08:34 · 7 answers · asked by ? 4

how long wold it take to get to mars at 2% SPEED of light?

2007-05-30 22:02:10 · 3 answers · asked by chingow 2

2007-05-30 21:47:44 · 6 answers · asked by dinoyar 2

A passenger on an interplanetary express bus traveling at v = 1.99c takes a five-minute catnap, according to his watch. How long does the nap last from your vantage point on a fixed planet?

2007-05-30 21:07:49 · 5 answers · asked by Anniepannie06 2