Physics - September 2006

help

2006-09-28 09:51:57 · 21 answers · asked by Anonymous

Will the stone go faster then the speed of light?

2006-09-28 09:15:25 · 12 answers · asked by Bran McMuffin 5

2006-09-28 08:45:20 · 10 answers · asked by whoknows 1

Hi every1. I wanted to know why sound waves cannot travel in vacuum and why electromagnetic waves can travel in vacuum.
For my part, I reasoned that sound waves cannot travel in vacuum because vacuum does not contain air particles. since we hear sound due to layers of air being shifted till it reaches our ears, I thought that sound waves maybe can travel in a vacuum but we will not hear the sound. That is sound waves travel like electromagnetic waves. The latter do not shift layers of air to cause sound. Hence they can travel. So I think that sound waves actually travel in vacuum but without making any sound.
Please tell me whether I am right or wrong and answer the questions I asked before. Also tell me whether EM waves do cause vibration of particles, and if yes, in vacuum what vibrations do they cause.

Good luck for the answer and I hope I get a good one :)

2006-09-28 08:35:42 · 5 answers · asked by Y L 2

Quantum Physics documentary

2006-09-28 08:17:24 · 3 answers · asked by Geronimo 3

2006-09-28 08:07:30 · 18 answers · asked by alex b 1

2006-09-28 08:05:00 · 20 answers · asked by alex b 1

You already know that atoms are very small. Atoms are far too small to be seen, even with a microscope. How can you study something so small? How can you determine the internal structure of an atom?

2006-09-28 07:20:17 · 5 answers · asked by heartiagram 2

2006-09-28 07:12:27 · 7 answers · asked by curioso 1

i just got bored of thinking about lught spectrum curvature

2006-09-28 06:50:26 · 8 answers · asked by richarde_uk 1

2006-09-28 06:41:36 · 6 answers · asked by venga_61 1

Imagine a cube, each edge of which is a 1 ohm resistor. What is the resistance across diagonally opposite corners?

2006-09-28 06:18:56 · 3 answers · asked by charlie 2

2006-09-28 05:39:39 · 7 answers · asked by need to no 1

The leg and cast weigh 220 N. The counterbalance w1 weighs 100 N. Determine the weight w2 and the angle needed so that no force is exerted on the hip joint by the leg plus cast.

2006-09-28 05:30:43 · 1 answers · asked by activegirl 1

2006-09-28 05:27:47 · 6 answers · asked by yfz450chuck 3

I need some ideas for my egg dropping contest

2006-09-28 05:13:53 · 10 answers · asked by g-maniac 2

is the sun of a 10N force and a 20N force always equal to 30N? Explain?

2006-09-28 05:05:38 · 4 answers · asked by Anonymous

A rocket accellerates at 5.00m/s until it runs out of water 2.5s later.How high will the rocket be when it's velocity reaches zero?

2006-09-28 05:04:00 · 2 answers · asked by Anonymous

2006-09-28 05:00:59 · 2 answers · asked by JAMES 4

These are the problems in statistical mechanics.for a given en'tropy' how these vars changes while keeping some vars const.
ISO .COMPRESSIBILITY= -1/V*(dv/dp)

2006-09-28 04:48:57 · 1 answers · asked by Naddi S 1

2006-09-28 04:36:07 · 20 answers · asked by Anonymous

2006-09-28 04:34:34 · 9 answers · asked by Anonymous

2006-09-28 04:32:04 · 4 answers · asked by wizkid 1

1) Why Does a physicist have to know how to operate instruments?

2) How does the knowledge of mathematics help a physicit?

3) Give Some Examples of application of Physics.

4)Given the units s, m/s , J, W , kg, A, V , m , m(3), candela, N/m(2) , C, Mole, farad , K, group themas basic units and derived units.

5) The standard units of some quantities have been changed so many times in the past. What could be the reason?

2006-09-28 04:29:19 · 20 answers · asked by Anonymous

need information about scientist's contribution in the field of physics,their photos & more...

2006-09-28 03:59:26 · 2 answers · asked by ? 1

2006-09-28 03:49:33 · 5 answers · asked by Anonymous

2006-09-28 03:46:51 · 2 answers · asked by Anonymous

2006-09-28 03:32:06 · 30 answers · asked by Anonymous

I was in bed with my wife during the Summer and observed a strange phenomenen. Around 11.00 pm, a ball of blue light about the size of a soccer ball entered our bedroom. It floated over the end of the bed, hovered for about 30 seconds and then seemed to slowly fade into our sliderobe presses. My wife also noticed this. The strange sphere appeared to be lit from the inside. This happened on a particularly hot evening, mid Summer. I am told that this may relate to 'ball lighthening' and has been observed by other pepole. Any ideas?

2006-09-28 03:31:52 · 11 answers · asked by Moose 2

2006-09-28 03:30:48 · 14 answers · asked by Anonymous