Physics - August 2007

Though only theoretical, what is your take on it?

2007-08-12 12:54:38 · 3 answers · asked by Anonymous

"In an infinite universe anything you can conceive of must exist somewhere"
True or false?
If TRUE -- Why?
If FALSE --- why?
Please explain your answer so a 5 year old could understand.

2007-08-12 12:43:50 · 4 answers · asked by hairypotto 6

hmm..now im more confused than before..haha,.so Mass is Energy?...grrr

2007-08-12 12:34:03 · 5 answers · asked by Joseph 2

Amplified Light ,. such as high powered lasers do, exhibit physical properties akin to "Mass Particles". hmm how can something that has no mass be a candidate for future space rocket propulsion?.

2007-08-12 12:13:49 · 6 answers · asked by Joseph 2

I have made a leg attachment under my pants so that i have support but i cannot stay balanced. please help me with any ideals or suggestion. Thank you for your replies

2007-08-12 11:41:19 · 5 answers · asked by Lewis L 2

2007-08-12 11:25:54 · 2 answers · asked by Anonymous

Consider that vacuum is made by virtual particles, and gravity its a space deformation. If we could build a "craft" that would interact with these virtual particles (maybe with space polarization with a very strong electric field), can we obtain a buoyancy effect on the "craft" from the sourounding space?

2007-08-12 11:00:53 · 2 answers · asked by eagle 2

when all wavelengths of light are present and there are no gaps from extreme red to extreme violet this is called _______?

on word anwser please

2007-08-12 10:11:06 · 8 answers · asked by Anonymous

1.Find the loaction of the image of a candle that is 6 cm from a concave mirror that has a focal length of 2 cm.

2.Find the height of the image of the same candle (from #1) if the candle is 3 cm high.

2007-08-12 10:07:30 · 2 answers · asked by Anonymous

2007-08-12 09:49:16 · 7 answers · asked by STORMY K 3

David Lindley's book, "Einstein, Heisenberg, Bohr, and the Struggle For The Soul of Science: UNCERTAINTY, page 135, ("... Born, came to ... conclusion. The spreading waves leaving the collision site ... not actually particles but their 'probabilities.' In other words, a direction where the wave was strong was a direction in which rebounding particles were likely to emerge. Where ... weak, by contrast, particles were less likely to be seen. ....")

Could something similar have happend at the time of the singularity, the big-bang? What if "probability waves" were all that occurred at that moment. What if these waves spread out in all directions and somehow interfered with one another. Might matter have formed only when the waves were maximum and space formed only where the waves were minimum. Maybe something like standing-waves account for the locations of galazies and the space between them? If so, might observations suggest there be a patterns there?

2007-08-12 09:44:00 · 3 answers · asked by Bob D1 7

Please derive or show the formula used to calculate this. Neglect air risistance

2007-08-12 09:04:19 · 5 answers · asked by Mike G 4

2007-08-12 08:37:55 · 11 answers · asked by Anonymous

2007-08-12 08:29:56 · 7 answers · asked by Anonymous

Also do you believe in time travel in the future and if yes how do you think we will be able to do it?

2007-08-12 08:21:25 · 10 answers · asked by Dr OXO 2

In "Finding Nemo," a huge school of large fish are caught in a net. They escape when Nemo instructs them to all swim downwards, overloading and breaking the fisherman's crane, which projects out horizontally over the water. Assuming fish would do this, would it work? Give the fish every benefit of the doubt. This is, after all, a kids' cartoon.

2007-08-12 07:04:03 · 3 answers · asked by anobium625 6

A hollow copper tube with a diameter of 3.87 cm is sealed at one end and loaded with lead shot to give a total mass of 0.183 kg. When the tube is floated in pure water, what is the depth of its bottom end with respect to the surface of the water?

2007-08-12 06:31:03 · 3 answers · asked by Anonymous

From physics, we know that when a figure skater is spinning and pulls her arms in, her rotational velocity increases (to conserve angular momentum) However, the rotational kinetic energy increases. So my question is, where does this extra energy come from? I read that it is from biochemical potential energy (from your muscles), but I am not sure if this is correct. Thanks in advance! :)

2007-08-12 06:28:23 · 2 answers · asked by Bob R. 6

Given: Road noise 300 feet away from sound barrier wall, House 20 feet from sound barrier wall.

Purpose: How high will wall need to be to stop boom box sounds (from the street) from reaching my house?

2007-08-12 04:34:23 · 11 answers · asked by Uncle Wayne 3

this is a question from the book of Explaining Physics GCSE edition by Stephen Pople.

2007-08-12 04:10:41 · 4 answers · asked by Mia S 1

a 'ray diagram' and the common 'equation: 1/u + 1/v = 1/f ' are two answers but i don't know where they fit in.

2007-08-12 04:04:01 · 5 answers · asked by Mia S 1

2007-08-12 03:43:20 · 9 answers · asked by suzi q 4

2007-08-12 03:04:48 · 5 answers · asked by cool girl 5

Hi, i'm having real trouble understanding the schrodinger equations (the time dependent and time-independent), can anyone explain simply what the difference is between the two, and what they are used for ?
Anyone that explains this as simply as possible, and without the use of too much maths will get 10 points.
Thanks, David.

2007-08-12 02:37:13 · 5 answers · asked by David M 1

2007-08-12 02:16:16 · 3 answers · asked by tellthetruthabc 3

Did Physics die with Feynman? ... Should today's "Theoretical Physics" be called "Mathematical Metaphysics" instead?

2007-08-12 00:01:31 · 9 answers · asked by Anonymous

can u explain whats the diff. between rest mass and moving mass?
do gamma rays have kinetic energy?

2007-08-11 23:29:56 · 6 answers · asked by kkkareeem 1

2007-08-11 23:14:49 · 6 answers · asked by Peter V 5

What happens when a charged piece of cellulose acetate (glass) strip is brought close to an electroscope and then removed?

2007-08-11 22:11:37 · 1 answers · asked by sdjfhdkjsfgkuae 2

2007-08-11 21:38:50 · 4 answers · asked by Anonymous