Physics - January 2007

2007-01-08 21:20:58 · 4 answers · asked by Alexander M 1

2007-01-08 20:37:18 · 4 answers · asked by Brian F 1

Let's say an strong electromagnetic pulse (e-bomb) was the payload of a missile detonated in the atmosphere above your car. Will the internal electronic equipment of your car continue to function properly?

2007-01-08 20:31:35 · 4 answers · asked by [ΦΘΚ] PIяATE 4

if we check the absorption properties of a flourescent material the taransmitted ray can couse an artifacts in the adsorption

2007-01-08 20:15:45 · 1 answers · asked by sandeep g 1

I like this question. Nobody knows the answer but me.

2007-01-08 19:45:05 · 7 answers · asked by wwwwwwwfe 1

A.diffusion C. Refracting
B.absorption D. resonant vibrations

2007-01-08 19:33:02 · 3 answers · asked by sam 1

this is the rule of maths when one side is same than other side is also same
in this equations "E" is Same
but "mc²" or "hv" hav not relation

2007-01-08 19:30:30 · 5 answers · asked by Help Line 360 1

Which one of the following frequencies of a wave in the air can be heard as an audible sound by the humen ear?
A .0.10 HZ
B. 1. HZ
C. 1,000 HZ
D 100,000 HZ

2007-01-08 19:05:33 · 4 answers · asked by sam 1

I've always been told that if you could go back in time you can't change something from happening without causeing a rift in time. I'm curious to see what others think..

2007-01-08 18:44:57 · 7 answers · asked by Jason T 1

we can feel fire... but we dont know what are the matter it is made up of.. at the same time, we dont refer fire as energy.. why?? what exactly is fire?? what is it made up of??

2007-01-08 18:15:54 · 18 answers · asked by honey 1

A. Positive and Positive
b. positive and negative
c. negative and negative
d. either (a) or (c)

2007-01-08 18:11:03 · 25 answers · asked by Sam the pikachu lover 1

ok............check out these questions ya'll:

1. Before the seventeenth century, what ideas did people have concerning motion, velocity, and acceleration?

2. How did philosophers in ancient times explain motion in the solar system?

2007-01-08 18:02:21 · 3 answers · asked by Yisi 3

that exists all around us or the planet? Is there a change in the electromagnetic field caused by the neural energies?? just wondering.

2007-01-08 18:02:20 · 4 answers · asked by Its not me Its u 7

1.
The speed of quantum of light is absolute quantity c=1.
But why does everyone say that there is no absolute
speed of motion?
2.
The speed of quantum of light is absolute only in
Vacuum, in absolute Vacuum.
But why does everyone say that there is no
absolute reference system?
===============
Can somebody explain this paradox?
http://www.socratus.com

2007-01-08 17:25:46 · 7 answers · asked by socratus 2

This was originally in response to a question about telekinesis, but I began to wonder what others thought of my theory.

Its all a matter of going beyond what the human consciousness is aware of.
Similar to my theory of walking through walls and other porous objects:
Everything is made up of molecules and atoms. Subconciously your mind controls the atoms and molecules that form you. If you can somehow manage to use that part of your mind consciously you'd be able to manipulate yourself to fit through the porous object and then resume your form on the other side.

However for the sake of telekinesis you'd have to take into account the distance and how much of your structure you can manipulate to extend and move something. While some may say this technically isn't telekinesis it would be very similar.

2007-01-08 16:56:43 · 2 answers · asked by Morgan P 2

2007-01-08 16:35:22 · 10 answers · asked by Anonymous

how the fish are alive in a frozen lake ?

2007-01-08 16:34:45 · 8 answers · asked by brajesh 1

2007-01-08 16:26:00 · 4 answers · asked by Khristina C 1

2007-01-08 16:17:39 · 8 answers · asked by phijan88 2

physics

2007-01-08 16:16:45 · 7 answers · asked by vinit j 1

2007-01-08 15:52:44 · 5 answers · asked by Edmund V 1

2007-01-08 15:41:17 · 1 answers · asked by stumped on physics 2

It seems like you are just losing information when rounding and leaving people to guess your uncertainty rather than to put (number)±(uncertainty)

2007-01-08 15:23:02 · 3 answers · asked by Anonymous

3) A golf Ball is hit at an angle of 25˚ with an initial velocity of 60m/s.
A) What is the vertical component of the initial velocity?
B) What is the horizontal component of the initial velocity?
C) How long is the ball in the air?
D) How far does the ball travel horizontally?

4) A 40 kg object is traveling in a circular (r=15m) path at a speed of 20m/s.
A) what is the centripetal acceleration of the object?
B) what is the centripetal force on the object?

2007-01-08 15:22:24 · 2 answers · asked by dan 1

2007-01-08 15:20:19 · 9 answers · asked by genevieve a 1

I understand that a rocket releases gasses that propel it forward this makes sense where there is an atmosphere. In the vacuum of space there is nothing for the gasses to push against??

2007-01-08 14:26:27 · 9 answers · asked by electricman2170 3

1) A force of 60 N is applied to a 4 kg mass at rest for 15 sec.
A) What is the acceleration of the object?
B) What is the Speed of the object at the end of the 15 seconds?

2) A 50 kg object is on a horizontal surface that has a µ = 0.25 and is traveling at a constant velocity.
A) What is the weight of the object?
B) What is the normal force acting on the object?
C) What is the force of friction acting on the object?
D) What is the net force on the object?

3) A 350 kg crate is pulled across the floor by a rope. The force on the rope is 500N. The crate is moving at a constant velocity of 2.5 m/s.
A) What is the force of friction acting on the object?
B) What is the weight of the object?
C) What is the coefficient of frictions (µ) between the crate and the floor?

4) A bullet is fired horizontally from a window 30m above the ground at 250 m/s.
A) How long will the bullet take to reach the ground?
B) How far does the buller travel horizontally before it hits the ground?

2007-01-08 14:18:11 · 6 answers · asked by Dan 1

2007-01-08 14:10:04 · 8 answers · asked by Dpeng 2

2007-01-08 14:09:24 · 4 answers · asked by Anonymous

I need to build a mousetrap car for physics class and it needs to go at least 20 feet with a pepsi can ontop of it. Does anyone have a really good design?

2007-01-08 13:56:07 · 2 answers · asked by Anonymous