Physics - January 2007

I believe we are now postulating that there are 11 dimensions. 9 in our universe, plus time, plus a dimension in which our universe co-exists with all other universes. Can we empirically or experimentally percieve any of the dimensions beyond the obvious three and time?

2007-01-10 00:49:53 · 6 answers · asked by Anonymous

This was very early in the morning and there could have, logistically, been no reason for any passing object/person to trigger it; my only thought is that for some reason an increase in room temperature could have caused this - but this seems unlikely to me - any thoughts ?

2007-01-10 00:29:33 · 9 answers · asked by Anonymous

There is an airplane on a runway. The runway is such that whenever the plane starts to move forward it slides in the opposite direction with equal speed. Will the plane ever fly?

2007-01-10 00:20:42 · 5 answers · asked by Anonymous

intuitively shouldn't making bonds absorb energy and breaking bonds release energy?

2007-01-10 00:19:24 · 5 answers · asked by Anonymous

2007-01-09 22:41:09 · 6 answers · asked by saumitra r 1

2007-01-09 22:10:16 · 5 answers · asked by anil d 1

If there is, why is police not using it to detect human bombs?

2007-01-09 21:56:53 · 12 answers · asked by gireesh 1

Have you ever wondered why normal mirror reflections are always along a vertical axis and not a horizontal one? That is, in a normal mirror reflection, the left becomes right and the right becomes left, but the image does not become upside down

2007-01-09 21:50:52 · 6 answers · asked by Anonymous

I have read those astronomical articles about how the stars we see in the sky, some are no longer there because they are already destroyed. What we are seeing now is a delay image because of the traveling of light.

So I want to ask, if one day we manage to achevie faster than light traveling devices, are we essentially travelling back in time? Since by all accounts we will be moving faster than light.

2007-01-09 20:14:20 · 8 answers · asked by wraithrune 2

2007-01-09 19:57:48 · 5 answers · asked by Raymond 2

2007-01-09 19:46:42 · 8 answers · asked by †ђ!ηK †αηK² 6

A river flows towards south at 10 km/hr.Wind blowing south at the speed of 30 km/hr gives rise waves on river surface these waves travels at 20 km.hr relative to the water.The waves are observed skindiver,a balloonist in air above the river and a fishman on the bank.What is the ratio of frequencies the three persons observed

2007-01-09 19:29:23 · 1 answers · asked by Ankur 1

everytime i put water inside the freezer, when it becomes ice, it expands. isn't it when a substance reach a low temperature, the substance contracts?

oh, i remember. when it turns to ice, it has bubble-like something inside.

2007-01-09 18:56:06 · 10 answers · asked by emperor_beethoven 2

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Physical evidence, not words, but actual PROOF.
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2007-01-09 18:40:21 · 6 answers · asked by Anonymous

2007-01-09 17:58:13 · 9 answers · asked by xfxjohn 1

2007-01-09 17:19:50 · 3 answers · asked by good friend 1

2007-01-09 17:14:57 · 11 answers · asked by good friend 1

"explosion" type of situation that is created. Why is this? Does this have to do with the heat of fusion?

For example, plunging a large amount of ice into a boiler.

2007-01-09 16:52:50 · 7 answers · asked by amer174797 1

a 45.0 kg stands on a 150 kg plank where the plank is originally at rest on a ice surface.
the ice surface is frictionless.
the girl walks constantly 1.5 m/s relative to the plank

2007-01-09 16:41:09 · 6 answers · asked by Tuan-Minh N 1

1. wats the relationship between the angle of incidence and the angle of reflection in each case

2. at what angle of incidence do the incident ray and reflected ray travel along the same path

3. if the angle of the incidence is doubled, what happens to the angle of reflection and why

plz dont flame me

2007-01-09 16:38:13 · 2 answers · asked by Anonymous

2007-01-09 16:32:45 · 10 answers · asked by afaf b 1

Thin, plastic coated cords like ipod and electric power cords knot themselves so easily. Why?

2007-01-09 15:51:49 · 3 answers · asked by Anonymous

It seems to work if time is taken out of the equation. Or if you know the names of the scientists working on it, that would help. It ties in with that whole parrallel universe thing. thanks.

2007-01-09 15:40:07 · 2 answers · asked by angrygramma 3

Answer me that will you?

2007-01-09 15:22:26 · 11 answers · asked by cyclonisz2 2

A runner achieves a velocity of 11.1 m/s 9s after he begins.


Thank You.

2007-01-09 15:21:35 · 3 answers · asked by sherry h 2

her friend throws a frisbee straight at her, in which of the following cases is the largest momentum transferred,

A. the skater catches the frisbee and holds onto it.
B the skater catches the frisbee momentarily buy then drops it verically downward
C The skater catches the frisbee holds it momentarily, and throws it back to her friend

2007-01-09 14:50:41 · 4 answers · asked by teddybears 3

The Big Bang theory said time had a beginning, which was when the big bang happened. So, time has a beginning or not?

2007-01-09 14:49:26 · 9 answers · asked by chanljkk 7

I heard that Einstein couldn't figure it out before he died.

2007-01-09 14:46:40 · 5 answers · asked by pikshi_misa 2

I heard that Einstein couldn't figure it out before he died.

2007-01-09 14:43:28 · 4 answers · asked by pikshi_misa 2

2007-01-09 14:41:49 · 11 answers · asked by ^_^ 1