Physics - August 2006

2006-08-26 17:59:14 · 7 answers · asked by Scott R 6

the lawn mower is pushed over a tatal horizontal displacement of 0.800 km.What is the x-component of force?How much work is done?

2006-08-26 17:50:02 · 3 answers · asked by xxgodsgift2youxx 1

2006-08-26 17:44:12 · 5 answers · asked by AmigaJoe 3

Why do images of atoms look like little balls? If (as I suspect) we're seeing the outermost electron shell of the atom, why are they all spherical? And since the 'shell' isn't really a shell, what are we seeing?

2006-08-26 17:37:05 · 3 answers · asked by AmigaJoe 3

2006-08-26 16:57:59 · 15 answers · asked by Anonymous

You hit it slowly. The inertia of the pile of coins is still there so only one should move? What has the speed of hitting got to do with inertia of rest?

2006-08-26 16:54:37 · 11 answers · asked by Anonymous

2006-08-26 16:40:25 · 9 answers · asked by pradeep s 1

2006-08-26 16:03:51 · 14 answers · asked by please answer this 1

2006-08-26 15:58:31 · 15 answers · asked by Anonymous

2006-08-26 15:50:42 · 13 answers · asked by Quantum Eagle 1

2006-08-26 15:48:21 · 18 answers · asked by sal_menella 2

Supplier is Melles Griot. Operating voltage is 2000V, and beam output is 5mW. Also, what is consequence of connecting with reversed DC polarity?

2006-08-26 15:41:57 · 10 answers · asked by Jason M 1

2006-08-26 15:07:25 · 2 answers · asked by leon123 1

What happens when a train traveling at the speed of light turns on its headlights? If they illuminate anything, then wouldnt the light coming from then be going faster than the speed of light? Is it even possible for the train to go that fast in the first place?
Thoughtful answers only, please.

2006-08-26 14:50:58 · 31 answers · asked by Anonymous

2006-08-26 14:47:45 · 3 answers · asked by Billu Mastan 1

2006-08-26 14:31:45 · 11 answers · asked by sheila c 3

why is there a equal force that goes up and down on a stationary object? and also why do they calculate acceleration in m/s^2

2006-08-26 14:15:55 · 5 answers · asked by {««мα∂gυу»»} 2

I am having an insanely difficult time understanding how time is relative. If anybody with a knack for explaining tricky issues like this could let me know, I would really appreciate it. Just to be safe though, when you do explain it, pretend that I'm really REALLY thick and stupid, that way you dont assume that I know anything that I don't. :) Thank you!!!!!

2006-08-26 14:13:09 · 6 answers · asked by Anonymous

The reason for the question is that I'm guessing that it wouldn't be possible to estimate how much propane is in a tank if it is lighter than air. I'm not the only dummy cause my buddy is sitting here wondering the same thing.

2006-08-26 12:39:12 · 16 answers · asked by ocstpete 1

and how badly could this hurt you?

2006-08-26 12:14:37 · 9 answers · asked by David H 1

THe French National Railroad holds the world's speed record for passenger trains in regular service. A TGV train traveling at a speed of 3400 km/r requires 1.20 km to come to an emergency stop. Find the braking acceleration for this train, assuming constant acceleration.

2006-08-26 11:32:56 · 9 answers · asked by Anna 1

For homework... can a car move in an eastward direction with a westward accleration? Please explain and give examples thanks!

2006-08-26 11:27:34 · 8 answers · asked by Ahmed 2

I know that the second law has to do with entropy and the fact that everything in the universe will eventually come to the most disorganized state possible. I have heard people use this law in biology, saying that life on Earth couldn't have begun without some outside force because amino acids wouldn't combine to become more complex, since this goes against the natural entropic properties of the universe. Can anyone shed some light on the subject? If possible, please explain more on the second law.

2006-08-26 10:28:50 · 8 answers · asked by Anonymous

Light travels at a finite speed. So when we look at distant bodies in our Universe, we are seeing them as they were in the past (as I'm sure many of you already know). If we look back far enough, we will see the Big Bang (just think about it for a few minutes if you don't believe me). This must be true no matter which direction we look. So, no matter where we look in the sky, we will be looking at the same singularity (a point). It seems to me that we might interpret this as meaning we are infinitesimally small.

I admit that the concept is very strange. I only ask that you think before you answer with your ideas.

2006-08-26 10:12:22 · 9 answers · asked by Anonymous

2006-08-26 09:12:18 · 5 answers · asked by goring 6

2006-08-26 09:10:07 · 3 answers · asked by goring 6

The 21st Century break thru to what Einstein was working his life away to find out?

2006-08-26 09:07:40 · 1 answers · asked by goring 6

2006-08-26 09:02:45 · 6 answers · asked by goring 6

2006-08-26 08:59:33 · 11 answers · asked by Anonymous

If not how can we say they are massless?

2006-08-26 08:45:04 · 7 answers · asked by goring 6