Physics - June 2007

2007-06-20 04:37:41 · 8 answers · asked by dreamerchacho 2

2007-06-20 04:20:08 · 9 answers · asked by donpet 1

I've heard that it does that it acrtually bends light or was that gravity......either or i would like some clarification on this subject ...thank you very much

2007-06-20 04:16:43 · 9 answers · asked by dreamerchacho 2

Its a science question.
what temp should you set the freezer at if you decided to make ice-cream by mixing water and other necessary ingredients together?(you place the mixture in the freezer)

2007-06-20 04:09:48 · 7 answers · asked by christine 2

2007-06-20 03:55:41 · 5 answers · asked by christine 2

AC power supply is provided to our homes from grid station, but there are many home appliances that are operated by DC.Justify how they will operate while AC main supply is provided but we have needed DC to operate them.

2007-06-20 03:54:16 · 8 answers · asked by Anonymous

Guillaume puts a bottle of soft drink in a refrigerator and leaves it there until its temperature has dropped 10.7 K.

2007-06-20 03:40:28 · 10 answers · asked by Anonymous

consider that u r sitting in a room with any two adjacent sides and ceiling(top) as plane mirrors.then,
1. How many no of images are formed?
2. How many no of images can u ( person sitting in a room )can see?
3. How many images are erect and virtual?

2007-06-20 03:33:23 · 3 answers · asked by Anonymous

The Bugatti Veyron can do 252mph, so assuming you left a 45 degree ramp at that speed, could you cover a distance of 1600 m? (Let's say the ramp is 10m high)

If not, what distance would you cover, and how fast would you have to go to cover the distance?

2007-06-20 02:05:51 · 6 answers · asked by swordman 2

If you looked at a light through the lenses from two polarizing sunglasses that were overlapped at right angles to each other,
all of the light would pass through.
most of the light would pass through.
little of the light would pass through.
none of the light would pass through.

2007-06-20 02:04:55 · 4 answers · asked by Anonymous

2007-06-20 01:46:15 · 9 answers · asked by Anonymous

what i mean by that is...I was watching a video in chemistry called Kaboom! and it said at the end, "Will one of these days we invent something that we wish had never been discovered" something along those lines. but you see where i am going. Afterwhich my friend will and i had a conversation about this startling video. We all have heard of the Nuclear Bomb. We are all familiar with its Devastating Effects, i mean just go look on google images and that can even convey the hell it creates. So lets say that a nuclear bomb is...50% energy and the rest is shrapnel and buildings blowing apart creating more flying debris. Now you are wondering "what the hell? 50%? NO, it has to be more than that..." But how much more. Well thats not my point here. So will brings up the idea of the Meeting of Antimatter with Matter which will supposedly be 100% efficient, or 100% energy...100% energy is something i shutter to think about when you consider the condition the earth is in in relation to wars....

2007-06-20 01:35:14 · 4 answers · asked by Anonymous

if light could travel in vaccuum, and vaccuum is definitely not a matter, would u consider light is a matter?

2007-06-20 01:05:26 · 7 answers · asked by nEEdblAblA 2

2007-06-19 23:27:51 · 4 answers · asked by anks 1

Please answer this immediately.I need it tomorrow so give out your answers now

2007-06-19 23:06:03 · 2 answers · asked by Chris 2

Any questions please don't hesitate to message me...

2007-06-19 22:40:53 · 6 answers · asked by Mark R 2

2007-06-19 22:21:10 · 3 answers · asked by Anonymous

A person lying on an air mattress in the ocean rises and falls through one complete cycle every five seconds. The crests of the wave causing the motion are 24.0 m apart. Determine (a) the frequency and (b) the speed of the wave.

2007-06-19 22:18:23 · 3 answers · asked by Anonymous

2007-06-19 21:24:36 · 3 answers · asked by arun maari rajha 2

I am interested in tesla coils but do not know what damage they can do to people. I want to know can i come in contact with one of the arcs they generate without getting hurt or feeling pain? But i will apreciate any advice you have.
I want to be able to conduct the electricity through my body to produce arcs from my fingetips or a piece of metal or whatever i have to use. Please dont say " I dont know anything" pleeeease. Thank you :)

2007-06-19 21:22:39 · 4 answers · asked by Keith Aumann 1

We had this on our exam. A propane cylinder contains liquid propane and when that escapes it goes into gas state. In normal cases liquid -> gas is endothermic, but this is more complex. The gas would escape and lose temperature (get colder) and the inside of the cylinder would lose pressure, correct? Wouldn't this be more of an equilibrium thing? Is it endothermic or exothermic at all? Please many details and citation so I can argue it to my teacher.

2007-06-19 20:42:59 · 5 answers · asked by Anonymous

Ijay, I just got Physics for Dummies and the book lists the Stefan-Boltzmann constant as 5.67*10^-8 J[s-m^2-K^4] when everywhere else on the internet it says: The value of σ is 5.670 400(40)×10−8 W·m^-2·K^-4? The first one is in Joules, the one on Wikipedia and everywhere else is in Watts. What's wrong here? Is it just in 2 different units? Thanks.

2007-06-19 19:48:29 · 3 answers · asked by Invader Z 1

I have a question:

If an object is sliding on the earths surface:

and slows down due to kinetic friction, and only the object is
taken as the system, the kinetic force is taken as the external force.

But if both the aerth and the object are taken as a system, is the kinetic force an external or internal force?

Can the frictional force change the momentum of the two body system?

2007-06-19 19:37:31 · 1 answers · asked by Anonymous

2007-06-19 19:26:04 · 11 answers · asked by barbiescradle 1

I was in a car accident from a driver doing a 180 across the freeway and entering my lane then shortly thereafter I was rear-ended. It was totally unavoidable.
Im trying to remember which car caused me to move forward etc.. from all the force built up. I think i went forward and my knees hit the dash after hitting the first car and then got whiplash and other injuries from getting rear-ended.
Can someone please help explain or give a resource on where to look up basic laws of motion on this? thanks

2007-06-19 19:24:18 · 2 answers · asked by Cynthia 2

The block is stationary but on the point of slipping. What is the coefficient of friction between the book and the wall?

POSSIBLE ANSWERS:
(A)0.3
(B)5.6
(C)1.75
(D)0.75
(E)9.6

2007-06-19 19:08:31 · 3 answers · asked by Pinkie 1

2007-06-19 18:53:12 · 9 answers · asked by randymtlvr 3

A) the pitch of the sound
B) how loud the sound is
C) how fast the sound travels
D)the magnitude of the compression

2007-06-19 17:48:16 · 9 answers · asked by Anonymous

how long does it take for A to catch up B? and also wts the distance when A can catch up B?

2007-06-19 17:36:26 · 3 answers · asked by Anonymous

2007-06-19 17:10:47 · 4 answers · asked by james h 2