Physics - January 2007

2007-01-10 13:36:22 · 7 answers · asked by johnnyh0122000 2

2007-01-10 13:32:03 · 9 answers · asked by Anonymous

2007-01-10 13:11:11 · 5 answers · asked by Sandusky 1

2007-01-10 13:06:05 · 3 answers · asked by Anonymous

2007-01-10 12:58:05 · 4 answers · asked by kelsey b 1

2007-01-10 12:49:12 · 7 answers · asked by veolapaul 5

Should it not be "the speed of Electromagnetic waves"? Light,afterall does not exists but in the human brain.

2007-01-10 12:45:08 · 5 answers · asked by Willem V 3

Two 0.10g pith balls are suspended from the same point by threads 30cm long. When the balls are given equal charges, they come to rest 18cm apart. What is the magnitude of the charge on each ball? (Neglect the mass of the thread)

2007-01-10 12:43:37 · 1 answers · asked by Deco 2

2007-01-10 12:19:16 · 5 answers · asked by knohare 1

Word...Thank you...Tom Science 4

2007-01-10 12:04:13 · 1 answers · asked by Anonymous

Thanks for your answer...Tom Science 4

2007-01-10 11:58:18 · 6 answers · asked by Anonymous

Do physics and computer science have similar qualities?

2007-01-10 11:44:01 · 3 answers · asked by compscience01 1

I have a physics question:
Two astronauts outside a space capsule decided to play catch with a third astronaut. All the astronauts weigh the same on earth and are equally strong. The first astronaut throws the second toward the third and the game begins. Describe the motion of the astronauts as the game proceeds. How long will the game last?

I have to explain this question using momentum. Please help!!!

2007-01-10 11:13:07 · 1 answers · asked by Anonymous

a) Name the 2 forces on the car
b) Name the 2 forces that help the car
b) Name the 2 forces that oppose the force

2007-01-10 11:08:51 · 2 answers · asked by Not Here 3

If you leave the refrigerator door open what happes to the temperature of the room??
the answer is it gets hotter beause heat loss > than heat given off..

cool < heat given off becaues of electrical energy...

can you explain this to me..?

2007-01-10 11:04:49 · 1 answers · asked by wzerocx 2

The velocity of a shockwave in water is 1500 meter/second, while the velocity of sound in air is 330 meters/second. The shockwave from a depth charge just beneath the surface of the water is felt by a ship 5.5 seconds before the sound is heard by the crew. How far is the ship from the explosion?
please explain in full details :)
Thank you in advance

2007-01-10 10:28:12 · 1 answers · asked by ♠Elizabetta♠ 2

2007-01-10 10:00:49 · 5 answers · asked by alexis christian 2

and how do we receive radio waves?
please keep it simple. otherwise, i won't be able to understand.

2007-01-10 09:49:36 · 2 answers · asked by Anonymous

Please help me with this I need to know.
If you're going to fool around, don't waste my time.

2007-01-10 09:42:51 · 5 answers · asked by yaz 2

an express train is hurtling down the tracks, a teeny tiny fly is heading towards afore mentioned hurtling train that hits teeny fly. as the direction the fly moves changes (from flying toward the train, to moving with the train, stuck to the front). there must be a brief moment when the fly is stationary. therefore the train, being in contact with the fly, must also be stationary.

is this right?

2007-01-10 09:35:53 · 2 answers · asked by Anonymous

2007-01-10 09:22:11 · 3 answers · asked by AK-47 2

A question about a well-known Bird used in telling the time(i.e in clock's

2007-01-10 08:53:38 · 8 answers · asked by ASHERS 1

2007-01-10 08:42:35 · 8 answers · asked by Anonymous

then they all form the tower from how dence they are....its almost like they fall into place...what is this eperiment called???!?!

2007-01-10 08:41:27 · 3 answers · asked by Anonymous

If the maximum speed was say a 10th what it is, would it have any drastic changes in the universe?
I guess there would be more and bigger black holes and light would take longer to reach us, but what would be the main differences in the universe? Would it be much different?

2007-01-10 08:41:12 · 6 answers · asked by Anonymous

a charge of -5 x 10^-7 C is 10cm from a charge of +6 x 10^-6 C.
find the magnidue and directin of the force on each charge.

is there a formula or something? i have to do more problems like this and i just really need to know how to do it. thanks.

2007-01-10 08:36:08 · 2 answers · asked by becky 2

Place a ink pen inside a empty pop bottle.
Now how do you get the pen back out without touching the bottle?

2007-01-10 08:36:02 · 8 answers · asked by Anonymous

when a photon from a distant star arrives on earth, it has not aged.

does this mean that it has not traveled through time at all, but only space?

thanks!

2007-01-10 08:35:36 · 3 answers · asked by Anonymous

If only "sensible" results of measurements can be observed, how do atomic scientists verify wavefunction states of a phenomenon like a half-live and half-dead Schroedinger's cat? I remember reading that the analogy applies to semiconductor circuits, where a gas exists on both sides of a barrier until it is observed. How can this be known with certainty?

2007-01-10 08:33:43 · 1 answers · asked by Anonymous

haven't taken any course in quantum field theory or read any advanced books about it, but I would like to make what I think is a deduction.

An electric field can be explained by changing magnetic field. Provided that some property of this changing magnetic field was met, the electric field may correspond to the electric field produced by a subatomic particle. So far, I don't know of any other type of field that would generate an electric field other than a changing magnetic field. Do the quantum physicists explain the electric field of subatomic particles this way? Do they know the changing magnetic field that would be necesary to generate the electric potential of the proton for instance?

2007-01-10 08:32:19 · 4 answers · asked by Anonymous