Physics - November 2006

2006-11-17 20:57:07 · 1 answers · asked by Anonymous

Why dont they sell golf balls that emit a sound signal when they are lost? I
'm thinking of something like a car key where the car lights come on if you within range.

2006-11-17 20:48:29 · 6 answers · asked by Paul R 1

2006-11-17 20:41:48 · 7 answers · asked by cult_king_666 1

2006-11-17 20:38:39 · 5 answers · asked by arka_spacerocker 2

is there any reason in acoustics related?by such as resonance
condition ,to avoid unwanted vibration......!?
plz refer the WEB-ADDERESS you prefer to tell the reason..

2006-11-17 20:35:22 · 5 answers · asked by sivasangu.t 1

2006-11-17 20:05:16 · 2 answers · asked by suseendar 1

I learn from physics that microwave cooks by vibrating water molecules.

How about food with no water content?

2006-11-17 19:49:07 · 5 answers · asked by LJ 2

2006-11-17 19:21:56 · 8 answers · asked by cult_king_666 1

2006-11-17 19:02:00 · 3 answers · asked by Anonymous

2006-11-17 19:00:50 · 2 answers · asked by Anonymous

I have heard of white noise. Is that what we hear in total silence and if so, what is it composed of?

2006-11-17 18:55:53 · 9 answers · asked by Scarabia 2

2006-11-17 18:21:31 · 3 answers · asked by Shashank 1

This is sort of hard to explain cause i don't get it myself, but can there be a space with nothing in it? Like absolutly nothing at all, can it be empty, without atoms or anything?

2006-11-17 18:04:49 · 9 answers · asked by asphyxia 3

2006-11-17 18:00:25 · 1 answers · asked by yuichi m 2

lol ... for some reason... alll the physicists i know are all so nice... makes me jealous... but its too late to change my major from biochemistry to physics :-/

2006-11-17 17:41:04 · 5 answers · asked by Christine 1

a small source of sound radiates energy equally in all directions at a particular frequency the intensity of sound 1.0m from the source is 1 raise to power -5 W/M2 corresponding to an amplitude of oscillation of the air molecules of 70 micrometer.assuming sound is propagated without energy loss
what will be
the intensity of sound
the amplitude of oscillation of the air molecule at a distance of 5.0m from the source.
Q2
a point source of sound radiates energy uniformally in all directions .at a distance of 3m from the source the amplitude of vibration of air molecule is 1 raise to power -7.assuming no energy is absorbed .calculate the amplitude of vibration 5m from the source
answer:
Q1:a:4 raise to power -7 W/M2
b:14micrometer
Q2 6 raise to power -8 m
plz solve these i could not solve them

2006-11-17 17:39:09 · 3 answers · asked by ghulamalimurtaza 3

2006-11-17 17:18:47 · 3 answers · asked by mimi 1

Sounds just as dumb as why is the sky blue...

But this is a serious question...

Any opinions... Any science?

Can anyone bull crap there way through this question?

Is it even answerable?

2006-11-17 17:10:50 · 5 answers · asked by Mr. Agappae 5

2006-11-17 16:42:59 · 7 answers · asked by kajol b 1

I have heard that positron electron pairs can appear out of nothing, I am a high school student who has had no physics yet but I am curious. I am not finding th eanswer to this question easily on the net. Can someone please help?

2006-11-17 16:37:27 · 3 answers · asked by John Frusciante 1

Would it work to just bounce a laser* off of a piece of silvered mylar - letting raw speech vibrations shake the mylar? [this is as for the sending end]
...As for a simple receiver, could you bounce the laser up into a flat piece of black construction paper with a small number (50-100?) grains of sand, (perhaps needing a hearing cone to help)?
* which could also be sunlight

2006-11-17 15:56:52 · 4 answers · asked by sincere12_26 4

when they are locked in an electromagnetic mass?

2006-11-17 15:48:19 · 1 answers · asked by goring 6

2006-11-17 15:27:45 · 2 answers · asked by chris wish 1

What is the approximate human range of audible frequencies?

Among light, sound wave,Infra-red radiation, ripples on a water surface, which one is longitudinal wave?

2006-11-17 15:14:22 · 5 answers · asked by free aung san su kyi forthwith 2

Wouldn't the beam be at a constant considering light is constant, so therefore should not dim?

Or should I lay off the booze and go to bed?

2006-11-17 15:07:37 · 13 answers · asked by This is my username 3

You have a transparent (borosilicate) glass window. Sun rays are falling on the glass, which is let's say placed horizontally. Some of the radiation passes through the glass, some is reflected back but some is absorbed and heats up the glass. How much of that total radiation is actually absorbed and makes the glass heat up? I speculate that would be somewhere around 2-3%. Any specialist in optics or heat flow?

2006-11-17 14:51:04 · 3 answers · asked by ovi.schi 1

If you do, then do you get a atom bomb explosion?

2006-11-17 14:50:30 · 7 answers · asked by Anonymous

I know foods can explode in the microwave, especially if there is fat or oil in the food, so I always cover food when I cook it. Yesterday I was heating a mug of plain water, and after about 90 seconds of heating it I heard a terrific BLAM. I turned off the microwave, waited 10 seconds, and then when I looked inside, most of the water was all over the inside of the microwave with only about an inch left in the mug. What's the scientific explanation behind the explosion of plain water?

2006-11-17 14:31:43 · 11 answers · asked by azera221 4

2006-11-17 13:56:32 · 15 answers · asked by Pierre G 1

2006-11-17 13:53:43 · 5 answers · asked by Pierre G 1