Physics - August 2006

Yes I'm sure I could just do some research on this to find out, but I'm bored and asking here.

If objects increase in mass as they approach the speed of light (with their mass being infinite at the speed of light), then would an object that achieves the speed of light (impossible, but let's say there was some loophole) have infinite mass? If so, would it have an infinite gravitiational pull? If so, would all the rest of the universe be drawn towards it at infinite speed? If so, would the rest of the universe have infinite mass?

Also, if something increases in mass as it approaches the speed of light, doesn't that negate the law of conservation of energy and mass, or is kinetic energy applied to acceleration converted to mass (thus explaining the increasing difficulty of accelerating a given amount of mass)?

2006-08-15 19:36:07 · 6 answers · asked by Anonymous

2006-08-15 19:23:35 · 4 answers · asked by FlyerGirl 1

2006-08-15 18:49:52 · 13 answers · asked by All about me 3

2006-08-15 18:38:59 · 12 answers · asked by Anonymous

2006-08-15 18:24:18 · 10 answers · asked by Anonymous

can a beam of electrons be refracted? explain

2006-08-15 18:13:33 · 9 answers · asked by John B 1

2006-08-15 17:55:21 · 10 answers · asked by socratus 2

Since the latest research shows the Universe expanded from an infinitely small singularity to larger than the visible universe we can observe today in far less than a millisecond Everything was moving almost infinitely faster than the speed of light at the birth of the Universe, right?.

2006-08-15 17:54:40 · 7 answers · asked by afriendof CLIFFy D 2

My dad read this theory in a book that I'm not so sure about.

Picture this: the sun instantly ceases to exist (I'm aware this cant happen). With it's mass gone the earth ceases to be in its orbit, and heads off on a tangent in the direction it was travelling at the moment the sun disappeared. So far, so good.

It would take eight minutes (earth being eight light minutes from the sun) for the sun's light to disappear from the perspective of earth. My dad says it would also take at least this length of time for the force of gravity to stop acting on the earth, because it too must "travel" from sun to earth, and nothing goes faster than light.

I say gravity doesnt "travel", so when the sun disappears, the earth immediately escapes orbit. Am I right?

2006-08-15 17:51:43 · 11 answers · asked by dave_eee 3

2006-08-15 17:51:28 · 5 answers · asked by nokia 6 1

I know about the observed behavior that when a car battery is set on concrete for any time over about ten minutes, it is drained of all electrical charge and cannot be recharged.

What I dont know is how this works. What is the physics behind this fact?

I've heard many explanations, but I have never heard a solid ligical reason why this happens.

2006-08-15 17:16:11 · 8 answers · asked by CHEVICK_1776 4

long after, with a residual image or light that we might be able to resconstruct; someday with some sort of high power "telescope"? like what we are doing with the dinosaur fossils.

2006-08-15 17:05:12 · 6 answers · asked by gerlooser 3

Black holes can be thought of as sort of electro-magnetic "grounds" between different neighboring dimensions; even points of contact between the "= & -" of inter-relating membranes of matter and energy. They may be pathways between different Dimensions or Universes but we'll never know firsthand in our lifetimes at least. They are pathways to the "lost" dark matter and energy scientists can't seem to find yet.

2006-08-15 16:55:25 · 10 answers · asked by afriendof CLIFFy D 2

yes or no
please explane
best answer gets 10 points

2006-08-15 16:39:17 · 6 answers · asked by Anonymous

Apparently, some years back, there was a rumor about a Star Trek fan who was trying to build an antigravity device and even claimed to have completed it. I was just curious if anyone else had heard the rumor and if anyone knows of any scientific research into machines or devices that might be able to disrupt or produce gravitational fields.

2006-08-15 16:31:10 · 8 answers · asked by Anonymous

Please explain with reference to newtons laws of motion ?

2006-08-15 16:08:37 · 8 answers · asked by Abhishek 1

I am about 175 or 180 kg., plan to be traveling at the usual bed-jumping-off speeds, have the typical drywayll installed as far as I am aware of, and have a very springy bed which I can get great height on whenever I jump on it.

I have hit my head several times on the ceiling which is approximately 2.5 m high whenever I jump on my bed, and I am just worried about denting the ceiling...

2006-08-15 16:01:12 · 5 answers · asked by aanstalokaniskiodov_nikolai 5

I've seen thieves do this on television all of the time, and I just like to seem like a sneaky sort of fellow. This seems quite sneaky.

I'm on the second floor.

Will the velocity at which I slink down the bedsheets have any effect on how tight or how many times I should tie the sheets?

2006-08-15 15:34:37 · 7 answers · asked by aanstalokaniskiodov_nikolai 5

I saw this on television, but no one was wearing the underwear while it was sent up the flag pole...I think it would be much more fun if I was still in it.

I would especially be happy to see the opinion of an experienced physicist! Will the velocity at which I am sent up have any effect on whether my underwear rips in this process? Thank you!

2006-08-15 15:26:14 · 8 answers · asked by aanstalokaniskiodov_nikolai 5

Darren is floating in space. His mass with his life support system is 240 kg. He wants to return to his ship so he throws with a force of 10 N his trusty tool kit that has a mass of 2 kg.

2006-08-15 15:16:26 · 2 answers · asked by doubleC 1

And /or what is the relationship between a photon and the wave it contributes to?

2006-08-15 15:12:53 · 2 answers · asked by Anonymous

2006-08-15 15:06:14 · 5 answers · asked by I dont know 3

Never was any good with Physics. :(

2006-08-15 14:55:14 · 4 answers · asked by The Mole 4

As far as I know, the 3-D are length, width and depth. What are the other dimension?

2006-08-15 14:40:20 · 7 answers · asked by borneo_shaman 1

Assume the black hole's tiny -- so small that inertia isn't a factor. Could you use electromagnets to control the motion of a black hole? And what would happen to the magnetic feild lines as they passed into the event horizon?

2006-08-15 14:36:46 · 10 answers · asked by John F 2

Mass <==================> Energy
|-----------| |
| |
Atom <=> (protons, neutrons) <=> quak <=> ? (string)

2006-08-15 14:26:08 · 3 answers · asked by Henry Cheung 1

2006-08-15 14:25:27 · 8 answers · asked by burn.daylight 2

how much work is done in pulling a box 200m across a table top wiith a horizontal force of 35.0 N?

2006-08-15 14:13:46 · 3 answers · asked by Linedwell R 1

Everyone knows that passenger jet’s cabin must be air tight to maintain a breathable atmosphere for the passengers, BUT what I’d like to know is, why is the cabin pressure increased so greatly for flight? Especially when at higher altitudes, with thinner air, there is less athmospheric pressure pushing in on the aircraft hull from outside.

Wouldn’t it be possible to maintain a breathable atmosphere inside the plane with air pressure equal to that on the ground if the cabin were only airtight and supplied with oxygen?

2006-08-15 13:49:27 · 8 answers · asked by Anonymous

2006-08-15 13:45:43 · 15 answers · asked by Jeff P 2