Physics - May 2007

For example, I would like to have something like a square aluminum pad or something that can take in heat from a source and transfer it some way to another location without getting too hot. Maybe through an insulated wire of some sort? Possible?

2007-05-25 09:44:48 · 5 answers · asked by heatseeker 2

they say that everything is just strings of energy and low vibrations. and that what we see isnt actualy there and its actualy in our mind. but what exactly do they mean?

are they saying that external reality doesnt exists? or are they saying it doesnt exists in the way that it appears and that we are seeing in in our minds eye?

2007-05-25 09:33:58 · 7 answers · asked by Anonymous

I understand the main idea in AC electricity is that the current is moving back and forth. Why in a lamp is one wire hot and one wire neutral? Shouldn't they both be the same?

2007-05-25 08:17:49 · 6 answers · asked by Lobster 4

since the earth is round, why don't we feel it's round when we're on the ground, and instead we feel it's flat?

2007-05-25 08:03:40 · 8 answers · asked by butterfly 2

We know that there is an opposite to everything. Just as something is taking up space in this dimension/reality, is it possible for something to occupy negative space. For something to be less than not there?

2007-05-25 07:34:18 · 3 answers · asked by jeramyaupton 2

when you speed up the flow of water in a pipe does the pressure of the water go up

2007-05-25 07:30:25 · 7 answers · asked by Anonymous

What is the density of a 5-kg solid cylinder. The cylinder is 10 cm tall and has a radius of 3 cm. Note that volume of a cylinder is given by,

2007-05-25 06:59:06 · 4 answers · asked by Anonymous

no wikipedia please

2007-05-25 06:19:47 · 5 answers · asked by Anonymous

Could someone please explain electron (or any partical for that matter) spin in terms of quantum field theory. I am well aware of the classical interpretation: a rotating sphere inducing a magnetic field.

Don't tell me to go to wikipedia, I am looking for a first hand explaniation from another physicst.

2007-05-25 05:50:35 · 4 answers · asked by kennyk 4

Do we just stop so another can go back and forth...

2007-05-25 05:42:00 · 5 answers · asked by Anonymous

Fill in the blanks with..
Water
Solar
Wind
Work
Core
Hydropower
Chemical Energy

2007-05-25 05:36:19 · 3 answers · asked by Anonymous

2007-05-25 05:33:14 · 10 answers · asked by Anonymous

2007-05-25 05:16:02 · 3 answers · asked by Anonymous

2007-05-25 04:57:06 · 8 answers · asked by lou 2

starts moving with equal speed v
1 moving towards 2
2towards3
3 towards 1
what is the time they all meet at a point


question was asked in entranse exam.

2007-05-25 04:54:00 · 4 answers · asked by Anonymous

Two isotopes of hydrogen fuse to form helium. The mass of the helium is 3.12 x 10(negative 10th power) kg less than the combined mass of the two hydrogen atoms. How much energy was produced in this reaction? The speed of light is 3 x 10 (8th power) m/s. What???

2007-05-25 04:40:33 · 6 answers · asked by DawnLynn 1

I'm looking for a technical/scientific explanation. A little more than it's just light. Thanks.

2007-05-25 04:36:47 · 18 answers · asked by Deneen 3

hello,
i have few questions for you and this is for my thesis (it is not the actual thesis but still very important) and we have to make people aware of radioactivity
so if you answer my questions accurately, i will be more than happy and i will appreciate

Where is radioactivity used today?
Can we avoid radioactivity?
Should we use radioactivity or not?

thank you very much
if you get the answer from websites or somewhere else, please mention it and list the sources :) (that shows awareness as well)

2007-05-25 04:19:32 · 7 answers · asked by Anonymous

For example, will someone standing at the edge of a rotating platform will be moving faster than someone standing right at the center?

2007-05-25 04:15:08 · 7 answers · asked by ILAN D 1

2007-05-25 04:08:10 · 10 answers · asked by Anonymous

In the movie apollo 13, there's a scene where the astronauts released urine into space, what will happen to the urine, will it float in space for eternity?

2007-05-25 04:05:15 · 5 answers · asked by Anonymous

2007-05-25 03:58:23 · 4 answers · asked by pandia 1

Coal contains minute quantities of radioactive materials, yet there is more enviornmental radiation outside a coal-fired power plant than outside a fission power plant. What does this tell you about the shielding that typically surrounds these power plants?

2007-05-25 03:38:32 · 3 answers · asked by Jackie3421 2

In the many worlds interpretation does this mean the world would diverge into 99 indentical copies each with a live cat and 1 with a dead cat

2007-05-25 03:31:04 · 5 answers · asked by Anonymous

2007-05-25 02:36:12 · 30 answers · asked by Anonymous

I've been having this debate with my boss at work. I'm a sports coach and I mostly work outside. Our uniform is black with white writing and this week the sun was scorching! I text my manager saying he needs to buy a uniform in the opposite colours (white with black writing) to which he replied the black absorbs heat and stops it affecting the body. To which I replied that white reflects the light and stops the heat getting to the body in the first place. Can someone please let me know who's right-hopefully so I can gloat!!!

2007-05-25 02:11:43 · 41 answers · asked by Nduka O 1

2007-05-25 00:43:16 · 3 answers · asked by satish r 1

2007-05-25 00:00:02 · 10 answers · asked by Anonymous

I've done the mock physics paper and there was a question that you had to prove the cost of something. just generally, how would you answer that? it's on the higher paper.

2007-05-24 22:56:26 · 2 answers · asked by Siera 1

2007-05-24 21:47:48 · 4 answers · asked by Anonymous