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Physics - August 2006

[Selected]: All categories Science & Mathematics Physics

Near FM 92 MHz on your radio you can hear static coming from your computer as you use it – that is information leaving it. This information is able to be read at least 50 yards away (1/2 the length of a football field). Our computers have been designed so others can read this information. Then, these same people are able to access a person's DOS files and change the configuration of a person’s computer, deleting information and changing other info. There is no such thing as computer security from this form of intrusion – a person will never know it happens. What I am interested in, is knowing the frequency used in accessing our computers. Does anyone know?

2006-08-16 03:48:06 · 10 answers · asked by Anonymous

I hear you can use lasers to cool stuff, how is this possible? Don't lasers burn stuff?

2006-08-16 03:13:08 · 2 answers · asked by Anonymous

2006-08-16 02:49:47 · 5 answers · asked by physics student 1

2006-08-16 01:51:51 · 17 answers · asked by zach 1

If there is no perfect vacuum (not even space), then what material fabric is space made out of? Also, something thrown into space will definitely come to a halt some day (maybe thousands of years after) due to friction between the object thrown and the fabric of space!

2006-08-16 01:49:56 · 10 answers · asked by Makaveli007 5

The Appolonious circle and its inversions?

2006-08-16 01:37:02 · 1 answers · asked by goring 6

for instance the seperation of certain atoms or molukules or combine some of them in a well contained area that has capabilities of such energy storage
thus radiation can be captured and set free in an enviromental friendly source of energy?

2006-08-16 01:32:20 · 2 answers · asked by Anonymous

This is the question: A rocket is fired vertically upward with an initial velocity of 80 m/s. It accelerates upward at 4 m/s^2 until it reaches an altitude of 1000m. At that point, its engines fail and the rocket goes into free flight, with acceleration -9.80 m/s^2. Now this is what I want to know: Will 1000m be the maximum altitude the rocket reaches since the engines stop at that moment, or will the rocket continue on? I know that at the maximum altitude, the velocity has to be 0 m/s, but according to my calculations using the data given, I get the final velocity of 120 m/s at 1000m. Please help!

2006-08-16 01:25:55 · 9 answers · asked by Moosehead 2

Why Compact disks have its surface so reflective and colourful? And why do we see different colours when we turn the disk around... how to determine the colours reflected with certain angle?

2006-08-16 01:00:37 · 6 answers · asked by Markus G 1

I NEED A EASY BUT ADVANCED SCIENCE PROJECT IN PHYSICS FOR 8TH GRADE!!

2006-08-16 00:46:37 · 9 answers · asked by Anonymous

2006-08-16 00:15:56 · 17 answers · asked by kadhal_days 1

only those having thorough knowledge answer. dont confuse me plzzzzzzzzz

2006-08-15 23:51:56 · 5 answers · asked by cool victor 1

Having asked many people if they can accept that there is more than one universe the answer is usually not only severe scepticism but like what you would expect superstitious people to behave when told the earth was round. You have no trouble believing this universe so why is it so hard to believe that there are virtually an infinite number of them? Its not voodoo so whats the problem? Not alternate realities just universes identical to this down to the last atom.

2006-08-15 23:09:21 · 8 answers · asked by ByeBuyamericanPi 4

Light is known to behave as both 'particle' (photon) as well as 'wave'. When we see any light source say our SUN, we are actually seeing it because photons emitted by sun is reaching our eyes....right?

If this is the case, our retina(eyes) are just a few millimeters in radius and the SUN is millions of miles away.....so the photon is released by the sun in my direction(for that matter to every observer) continueously? doesn't this simply sound like unbelieveably huge number of photons to be released in all the directions?

2006-08-15 23:03:13 · 9 answers · asked by Anonymous

Will an airplane be able to use the earth's rotation to get to a destination faster? If a helicopter hovers in place for 24 hours, will the world make one full rotation underneath it?

2006-08-15 21:30:54 · 11 answers · asked by jvibs 1

I read in one of the feynman book that for some analysis they assume that out of vacuum a pair of particle and anti-particle is created.......so does it imply that when "matter" and "antimatter" meet they just annihilate each other and ther is no release of energy?

2006-08-15 21:27:49 · 10 answers · asked by Anonymous

[ weight is a force ,the unit of force is newton.But we are expressing in Kg(unit of mass)]

2006-08-15 21:22:04 · 7 answers · asked by jay 1

Can the elementary particle called Neutrino that passes through everything, including lead, cause damage to the matter it passes through and will it cause damage to DNA?

2006-08-15 21:02:19 · 6 answers · asked by Enduringwisdom 4

It's as though there is a universal pressure,beyond our four forces,that tends to push all mass towards other mass.I think it would be the opposite of gravity...tom science

2006-08-15 20:22:35 · 12 answers · asked by tom science 4

2006-08-15 20:18:54 · 19 answers · asked by mutzdeluxe 2

2006-08-15 20:06:00 · 10 answers · asked by Zain 1

Thank you

2006-08-15 19:49:32 · 1 answers · asked by Anonymous

2006-08-15 19:43:17 · 14 answers · asked by Anonymous

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