Physics - July 2006

Is it because of how light waves are refracted by water?

2006-07-22 23:25:44 · 10 answers · asked by Anonymous

If it were possible to drive through space in my car, and I was travelling faster than the speed of light, would my headlights shine behind me?

2006-07-22 23:03:05 · 11 answers · asked by Saudi Geoff 5

I don't, but i really want to! i am not asking much - the places are only 3,500 miles apart! Come on, where are the evil geniuses who can make this happen fo me!

2006-07-22 21:38:45 · 35 answers · asked by Mac 2

2006-07-22 21:12:35 · 11 answers · asked by Alx 2

Even if it by a little at a time.. it would benifit us.. less weight, less work, and you could even go deeper under water cuz the weight wouldn't crush us!! It would open up a whole newworld.. is it possible???

2006-07-22 21:10:02 · 14 answers · asked by Jordan 3

2006-07-22 20:22:13 · 4 answers · asked by harsh_chirania 1

2006-07-22 19:51:32 · 2 answers · asked by brahminboys_123 1

For a hyperbolic second order linear PDE such as the Klein-Gordon equation, to get a unique solution we must specify the value of the field at spatial infinity, as well the value and normal derivative on some space-like surface. The retarded Green's function satisfies the BC of zero at spatial infinity, as well as zero field and normal derivative at some spatial slice in the far past. The advanced Green's function puts that spatial slice in the far future. What BC's does the Feynman Green's function satisfy?

2006-07-22 19:33:07 · 2 answers · asked by KH 1

2006-07-22 18:56:14 · 10 answers · asked by Anonymous

Another name for matter is illusion.

2006-07-22 17:17:03 · 8 answers · asked by Zubli Zainordin 1

Ok, I am shining a torch into an opaque box. Then, I take the lid and SLAM IT SHUT at faster than the speed of light. Will the light get trapped in the box? What happens if i do a same experiment but at exactly the speed of light?

2006-07-22 16:47:53 · 7 answers · asked by junvic 2

...tom science

2006-07-22 16:38:05 · 14 answers · asked by Anonymous

I am a student currently studying for a degree in aerospace engineering
I have asked several teachers and many other people the
following question but have not received any respectable answer:

The Earth is 93 million miles from the sun. Other planets,
and even much denser planets I might add, are much further
yet from the sun. The obviously strong gravitational attraction
of the sun holds all of these planets in orbits around the sun.
If gravity could be simply defined as a force that attracts matter,
and the sun's gravitational pull is sufficient to hold the Earth in orbit,
what keeps it from pulling me off the Earth? In fact, the gravitational
pull of the sun is so weak at this distance that It can't even produce
enough pull to raise a hair on my head. So how can it hold the Earth
and several even denser planets (even further out) in orbit?

So--if the gravitational force of the sun is powerful enough to hold
the Earth in orbit, then how could the Earth's gravitational force be
powerful enough to hold me down, counter-acting the gravitational
force of the sun? Please unconfuse me!

2006-07-22 16:33:49 · 20 answers · asked by Anonymous

...tom science

2006-07-22 16:25:32 · 5 answers · asked by Anonymous

I thought of this while pondering Newton's Cannon.

2006-07-22 16:23:32 · 9 answers · asked by benbobbins 3

and not as aa controled by people( like a program) and then transport back into a androide body?

2006-07-22 16:06:28 · 3 answers · asked by Paul G 5

Can you see anything behind you?

2006-07-22 15:22:54 · 3 answers · asked by pelister56 4

Three particles, each with a mass of 0.25 kg, are located at ( - 4.0 m, 0), (2.0 m, 0), and (0, 3.0 m) and are acted on by forces, F1=(-3.0N)y, F2=(5.0N)y, and F3=(4.0N)x respectively. Find the acceleration (magnitude and direction) of the center of mass of the system. [Hint: Consider the components of the acceleration.]

2006-07-22 15:18:05 · 4 answers · asked by jamey.moore@sbcglobal.net 1

2006-07-22 15:02:00 · 2 answers · asked by Charles M 1

and then go into another car and drive it at the same acceleration into the first car, did you get into an accident w/ yourself?

2006-07-22 15:00:27 · 5 answers · asked by anna c 2

Did you find the implications of quantum physics disturbing? Did learning about quantum physics cause a paradigm shift in your worldview? Why or why not?

2006-07-22 14:18:47 · 12 answers · asked by Anonymous

2006-07-22 14:16:00 · 9 answers · asked by Abdul S 1

2006-07-22 13:27:36 · 5 answers · asked by naylor t 2

2006-07-22 13:21:15 · 3 answers · asked by naylor t 2

2006-07-22 12:57:57 · 31 answers · asked by spawn_of_cookie_monster 3

Yes, this is a homework question! :) A projectile that is fired from a gun has an initial velocity of 90km/h at an angle of 60degrees above the horizontal. When the projectile is at the top of it's trajectory, an internal explosion causes it to separate into two fragments of equal mass. One of the fragments falls straight downward as tough it had been released from rest. How far from the gun does the other fragment land? PLEASE HELP ME WITH THIS!! :)

2006-07-22 12:34:57 · 9 answers · asked by JK6969 1

yes or no and please explane

2006-07-22 12:08:53 · 18 answers · asked by Anonymous

or hover down or stick

2006-07-22 12:07:42 · 5 answers · asked by Anonymous

2006-07-22 12:04:37 · 18 answers · asked by Anonymous

consider:
1) the earths rotation
2) the earths rotation around the sun
3) the ever expanding universe

2006-07-22 12:03:06 · 16 answers · asked by Anonymous