Physics - August 2006

Does string theory prove that it is posible to transmute lead into gold?
l know string theory can't be proved and it is only a theory, but it is the best one we've got and if you intuit it its the most probable.

2006-08-08 13:01:37 · 12 answers · asked by Anonymous

All unstable systems, no matter how unstable they are, REQUIRE an external disturbance to release their energy.

A Brick on top of a tall building can be said to be unstable, but the brick will NOT fall untill something has pushed the brick off the building.

Same thing for radioactive atoms. They do have an odd combination of nucleus, but WHAT is disturbing the nucleus at the time it is releasing it's radioactivity ?

Is there some sort of quantum fluctuation in the universe that upsets unstable atoms into releasing their radiactivity ?

2006-08-08 12:52:16 · 6 answers · asked by Technotron 2

I don't know what formulas and processes to use with this question.

A person drops a stone from rest into a hole. The speed of sound is 343 m/s in air, and the sound is heard 1.5 s after the drop. How deep is the hole?

2006-08-08 12:29:13 · 5 answers · asked by airbearfl 1

Can I get some help with the work process for this problem?

A cement block falls from a building that's 53 m. When the block is 14 m from the ground, a man, 2 m tall, sees it. How much time does the man have to get out of the way?

2006-08-08 12:24:22 · 5 answers · asked by airbearfl 1

Any help on the process and formulas used for this problem?

A woman on a 90 ft tall bridge sees a raft below moving at a constant speed. She drops a stone trying to hit the raft when it's 6 m away. The stone hits the water 2 ft in front of the raft. How fast was the raft going?

2006-08-08 12:14:42 · 4 answers · asked by airbearfl 1

I need help with the process or formula used for this problem:

A person jumps off a building 99.4 m high. They struck the ground at 39 m/s. How fast would they have traveled if there was no air resistance?

2006-08-08 12:00:56 · 6 answers · asked by airbearfl 1

2006-08-08 11:59:58 · 27 answers · asked by DEREK S 1

2006-08-08 11:49:28 · 14 answers · asked by JOe M 2

...the effects of relativity and time dialation on the disk?

2006-08-08 11:38:47 · 6 answers · asked by Chx 2

Whats the difference between Modern Physics and College Physics.. or Applied Physics?

Is Atomic and Nuclear Physics based on Atoms and Nuclear related topics? Or it is completely different?

Same goes for Classical Physics, Space Physics and Astrophysics, etc...?????

--Rob

2006-08-08 11:37:29 · 3 answers · asked by stealth_n700ms 4

effects of relativity and time dialation on the disk? Would it crack? What would happen? (This is an interesting thought experiment, no?)

2006-08-08 11:35:11 · 2 answers · asked by Chx 2

Assuming nature uses the "real" value in its computations. But where is the computational overhead of the universe that determines what happens?

2006-08-08 11:11:43 · 7 answers · asked by Ejsenstejn 2

2006-08-08 10:49:20 · 2 answers · asked by shiam20_10 1

Is Unity power factor a good thing?

2006-08-08 10:28:45 · 1 answers · asked by goring 6

2006-08-08 10:23:19 · 7 answers · asked by duits816 1

I do!

2006-08-08 10:02:09 · 22 answers · asked by Fluke 5

2006-08-08 09:29:14 · 4 answers · asked by td 1

i need to make a car or a train without electricity or chemical mechanisms or gasoline. Please somebody tell me about it.

2006-08-08 09:24:26 · 4 answers · asked by tyferdcw 1

For years this has been debated between some scientists, skeptics, and other scientists. Ok, so call me stupid, But you must have a logical reason for how invisibility can be possible.

The rules:
NO breaking the laws of physics, the answers have to be realistic please.
NO inventing a machine to break the laws of physics. If you can't break the laws of physics, then no machine can.
NO superpowers. Name one REAL and PROVEN instance of REAL superpowers. Can't find any, eh?
MAKE SURE to be as creative as you want, as long as your theory doesn't conflict with the rules.
NO falling into radioactive waste and suddenly being invisible, I count this as superpowers. All radioactive materials will do to you anyway is give you cancer.
EXTRA points if you can explain your theories of what it would be like being invisible, as long as your theories do not conflict with the laws of physics and any of the rules.

Other than that, have fun! I'm excited to see the answers!

2006-08-08 09:12:43 · 8 answers · asked by Anonymous

2006-08-08 09:12:20 · 2 answers · asked by iftikharpl 1

I believe that there is no "Time", everything just is, and as it ages, it corrodes or withers or dies. But the actual "Time" does not exist! Without watches and calendars, what is time, isn't it just things in existence aging?

2006-08-08 08:54:58 · 14 answers · asked by will2succeed 1

What if Einstein and all that followed him in their thinking are just plain wrong?

2006-08-08 08:49:08 · 20 answers · asked by ponyboy 81 5

if resonance frequency of any thing is acquired it vibrates at twice the frequency ,concord planes are known for there breaking glasses due to noise produced.

2006-08-08 08:29:18 · 8 answers · asked by bhadguy 1

A 1.0 kg light is swung at the end of a string in a horizontal circle of radius 1.0 m with a constant angular speed. If no torque is applied, what must the radius become if the angular speed of the flashlight is to be doubled?

2006-08-08 08:19:45 · 2 answers · asked by todd b 1

2006-08-08 07:41:14 · 13 answers · asked by Anonymous

2006-08-08 06:53:15 · 4 answers · asked by nicemachine 2

A lot material on the internet say that the universe was created by bigbang and it started of with a single point and it blew up to the current state.......

I am no scientist, but just to imagine that this massive-massive universe was so much compressed at time=0 is unbelieveable to say the least.......Are there any proofs to really tell us that this whole stuff was just the size of single point?

Expanding universe could also have been from a initial mass say the size of a "galaxy" atleast.

2006-08-08 06:30:35 · 5 answers · asked by Anonymous

2006-08-08 06:28:31 · 14 answers · asked by Damn_girl 1

inter galactic space was told to be occupied by "ether" later i read somewhere that this has been disproven.

my question is "vacuum" = "nothing" (the intergalactic voids)

if this is true then "gravitational force" has to be caused by "some kind of particles rather than waves right"?

2006-08-08 06:24:01 · 5 answers · asked by Anonymous

Send me a pic

2006-08-08 06:19:29 · 9 answers · asked by Rad B 1