Physics - December 2007

It is a well known fact that sound travels faster in solids than in liquids than in gases

2007-12-30 21:34:44 · 8 answers · asked by aman s 1

2007-12-30 21:19:38 · 8 answers · asked by Maharaja 4

Is there ANY possible way to make it float? The only requirement is that it's half-full of mercury.

2007-12-30 20:24:41 · 4 answers · asked by Anonymous

Is there no technology to let sea-water be used to make electricity? Our earth is running out of resources, so how do we see our future generation to survive when there is no electricity or no petrol available?

2007-12-30 20:20:21 · 11 answers · asked by Anonymous

i have no idea what to do for my physics project, i've tried googling some topics but some of them seemed a bit too far complex

i'm a high school junior and i need a good creative physics project

any sites/links with procedures or ur own ideas would be very helpful

2007-12-30 18:57:04 · 5 answers · asked by Anonymous

I want to know about heat capacity!!!

2007-12-30 18:34:28 · 6 answers · asked by lafae 2

can someone define it in an easily understandable way. thanks! =)

2007-12-30 16:29:40 · 12 answers · asked by Anonymous

And we have over 6 billion now... do you have a theory as to what will happen when the 10 million mark is reached?

2007-12-30 16:04:22 · 7 answers · asked by Ballerina Butterfly Queen 5

before global warming and other looming disasters on the horizon make life to complicated for such ideals?

2007-12-30 16:04:05 · 4 answers · asked by Ballerina Butterfly Queen 5

The project is on applications of sound

2007-12-30 15:23:03 · 6 answers · asked by taaha 3

2007-12-30 14:53:10 · 8 answers · asked by Strawberry2555 1

Now I'm no idiot and I know that mirrors are basically optical illusions and they don't really show how things look in real life, but I just don't understand how THEY make them. Are they man made?

2007-12-30 14:43:10 · 6 answers · asked by stephendavis2 1

Using principles of gravitational potential energy, how can I construct a tabletop trebuchet model that is able to project a golf ball a distance of at least 6 ft. The maximum dimensions are 24 x 24 x 24 [inches].

2007-12-30 14:23:03 · 2 answers · asked by cassie K 1

2007-12-30 14:19:20 · 8 answers · asked by 0hSnap3 0 2

2007-12-30 14:05:26 · 2 answers · asked by s8888 1

If you take a laser pointer and put a magnifying glass in front of the laser, is it possible to amplify the laser to the point in which it can burn something?

2007-12-30 13:10:12 · 4 answers · asked by Ethereal 5

when i look closely at my hand, I see very small dust particles being drawn to it, is this gravity from my hand? when you stand next to a large building or cliff you sort of feel it, is it because those things have gravity?

2007-12-30 13:00:49 · 12 answers · asked by Anonymous

If humans were to design a way to implode a giant mass, would that cause a black hole?

2007-12-30 12:57:36 · 4 answers · asked by Gary88 1

Is a ring formed as gases are pushed away?
Are Gases and dust packed very tightly together?

2007-12-30 12:38:50 · 3 answers · asked by ♥Jazzi Pooh♥™ 1

Write nuclear equations for the alpha decay of 210/84 Po and the beta decay of 14/6 C.

2007-12-30 11:47:28 · 1 answers · asked by Anonymous

The half life of 52/25Mn is 5.6 days. Find out how many half-lives are past after 50.4 days. How much of a 100g sample would be left after that time?

2007-12-30 11:46:41 · 3 answers · asked by Anonymous

____1_____- the transfer of heat by the movement of a ___2____ from once place to another. It is caused by the difference in ___3_____ between areas of high temp and areas of low temp.

____4____- the transfer of heat through a material
which does/does not (circle one) involve the movement of the actual material.

_____5___ is the process of transferring energy by means of ___6____ waves. This is the way is delivered from the _____7____. It is also the primary way in which we receive heat energy from a light bulb or from a fire.

2007-12-30 11:45:16 · 2 answers · asked by jolie. 1

My friend says it is, but won't divulge details. I'd like to know the science behind this and whether it's somehow possible. Thanks!

2007-12-30 11:44:28 · 6 answers · asked by Anonymous

If a huge nuclear blast was detonated just a millisecond before event horizon, or just before entering blackhole, would it make an effect?

2007-12-30 11:43:31 · 5 answers · asked by Gary88 1

I speculate that time was 1st noted by primitive man when he unavoidedly noticed that plants grew well when it got warm but not when it was cold; he would notice that bears hibernated and many other anumals seemed scarce when it was cold. He noticed the phases of the moon, 12 or so complete cycles each complete warm/cold cycle. He could not help but distinguish between day and night. Man as symbolizer gave these phenomena names. As he learned to devise tools, he made a sundial to divide a complete day/night cycle into sections probably to improve communication. As tool making improved, man contrived mechanical clocks and moved on to atomic clocks and maybe something even more sophisticated. But time is still a mental construct just as mathematics is. Without man -- no mathematics ... no time. Then , how can time be a real variable quantity? Being a mental construct, man can fit it into any mental construct in a manner convenient to any theory like relativity.

2007-12-30 11:02:54 · 8 answers · asked by Swamp Fox 1

a useful piece of scientific information?

2007-12-30 10:24:53 · 5 answers · asked by coolkid 2

2007-12-30 09:43:10 · 3 answers · asked by I-AM-LEGEND 1

would that affect the mental health of people ?

2007-12-30 09:23:06 · 4 answers · asked by Anonymous

2007-12-30 09:13:29 · 9 answers · asked by stunston 2

Don't be an idiot and answer "how we say something is funny."

I mean physically, what in our body is making us laugh, and why?

2007-12-30 07:52:55 · 3 answers · asked by Anonymous