Physics - July 2006

I have heard the big bang described as a sudden explosion of dense matter the approximate size of a marble. My question is, where did the marble come from? What was before that?

2006-07-05 23:59:08 · 4 answers · asked by lady_effie 2

We use salt with ice and use this mixture outside a metal pot to prepre icecream in it. Also salt is used for melting ice on the streets on snowy days . How are both things explained by assuming the fact that the melting pt of ice is lowered by mixing salt ?
In the first case ok but what about the second?

2006-07-05 23:51:14 · 4 answers · asked by gnparvate 2

I know that the capacitance is depended on area and distance etc etc. However, can someone explain to me the statement that as the area increases the, Elctrical field decreases.
C would increase because of the area, and V would decrease because of the E, so for this scenario would the charge be constant or increasing.

Can someone show in equation forms, please show how E would decrease.

2006-07-05 23:49:18 · 4 answers · asked by Anonymous

... seemingly lucid and intelligent questions, would it make any difference as to how you answer my question? Would you know the difference? If the eanswer is no, would it mean that I was intelligent?

2006-07-05 22:53:59 · 7 answers · asked by Anonymous

2006-07-05 22:06:14 · 16 answers · asked by pawas s 1

Excluding the fantasia of time travelling,
How do you think that the feeling or sense out of the time that we are attached to?
if it is clear ok else
without sensing time passing...growing or decaying or just continuing...how do you imagine life is?

2006-07-05 21:54:52 · 6 answers · asked by Anonymous

2006-07-05 21:54:10 · 4 answers · asked by Gonit O 1

please i want cool and smart answers

2006-07-05 21:32:29 · 4 answers · asked by Anonymous

i weight 120 and i wanna no cause im gonna do this

2006-07-05 21:18:54 · 25 answers · asked by Anonymous

1. Why can we apply Newton's 2nd Law to circular motion?
a. because the objects are not accelerating
b. because there is no net force acting on the objects
c. because the net force acts parallel to the motion
d. because the acceleration causes the object to change direction


Choose 1

2006-07-05 20:33:30 · 6 answers · asked by Zman 1

. A 0.24 m radius wheel completes 15 rotations in 4.1 seconds. What is the velocity of the wheel?
a. 0.368 m/s
b. 0.101 m/s
c. 5.52 m/s
d. 0.412 m/s

2006-07-05 20:31:13 · 4 answers · asked by Zman 1

how many cause i was gonna do this

2006-07-05 20:29:50 · 6 answers · asked by Anonymous

2006-07-05 20:08:46 · 25 answers · asked by red35 2

2006-07-05 19:31:39 · 9 answers · asked by Aunt Mair á?¦ 5

reaches a maximum height of 15m.find its initial velocity.what is the total time of flight in reaching that height?time in reaching back the ground?

2006-07-05 19:17:55 · 3 answers · asked by Anonymous

The angle between the two forces is 45 degrees... I'm to find the magnitude AND the direction of the resultant of those two forces. I have the answer, but I need to see how it's found.

I know this is a simpler problem because I took a year of college physics because I'm a premed, but it was a while ago and I've moved on in and almost forgotten it. I have some major brushing up to do before grad exams, but can anyone help me solve this?

2006-07-05 19:10:44 · 4 answers · asked by buttercup1137 2

at the rate of 160 km/h.where should the plane be with respect to the target when the bomb is dropped if a hit is to be made?

2006-07-05 18:50:05 · 5 answers · asked by Anonymous

2006-07-05 18:36:16 · 11 answers · asked by Anonymous

Can an area of space be completely void of energy/matter and time and if it did, could you see though it?

2006-07-05 18:30:10 · 4 answers · asked by Pablo Fujita 1

This is actually a legitimate question. Many modern day physicists believe we exist in a "brane" i.e., a layer of reality with somewhere between 4 and 11 dimensions - see "The Elegant Universe" by Brian Greene. Yet we would exist on just one of an infinity of branes. Supposedly the only exchange between the branes could be gravity waves. Human dream states are almost metaphysical in character. Could human experience while in such a state be influenced by other branes?

2006-07-05 15:51:14 · 3 answers · asked by mylgusa 1

Has anyone ever witnessed or expeirienced somthing along the lines of this? i belive it to be totaly possible, and the quantum theroy of electrons( or the theroy of electrons being both waves and particles) seems to support the possibility.

2006-07-05 15:47:31 · 5 answers · asked by Anonymous

This was a question on a recent driver's license test and we have found many facts about opening doors under water but very little about windows.

2006-07-05 15:46:06 · 12 answers · asked by Donna 1

sometime my attention is diverted through religion and politics which i donot like neither my family

2006-07-05 15:33:55 · 6 answers · asked by ghulamalimurtaza 3

how long will it take the ball to reach the ground?what will be its velocity when it strikes the ground?

2006-07-05 15:04:58 · 9 answers · asked by Anonymous

how much time id required for the box to reach the earth?how far does it travel horizontally while falling?find the horizontal and vertical components of its velocity when it strikes the ground?

2006-07-05 14:31:01 · 7 answers · asked by Anonymous

The second part to this question is, can a photon be observed perpendicularly or as it passes across a line of observation?

2006-07-05 14:26:31 · 8 answers · asked by Pablo Fujita 1

is it not a better way to generate power

2006-07-05 14:18:34 · 2 answers · asked by ghulamalimurtaza 3

2006-07-05 13:57:51 · 14 answers · asked by borneo_gal 2

Why does the flow of current looped many times around an iron bar create a magnetic field? Could it be accomplished without the iron bar in the center?

2006-07-05 13:19:41 · 6 answers · asked by psilohead 2

Could a one proton thick coating be applied to any material? I mean the material would look like a checkerboard of alternating proton and electron particles.

If so, would this not make the perfect shielding for space travel?

I cannot see how it could be penetrated, and it would seem that the weight penalty would be offset by its extreme thinness.
It may be beyond our technology, or maybe it has been proven theoretically impossible.
Any thoughts?

2006-07-05 13:14:36 · 5 answers · asked by athorgarak 4