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Physics - October 2006

[Selected]: All categories Science & Mathematics Physics

Must back up your answer with scientific facts.
Please, no rhetoric or Bible quotation.

2006-10-20 05:41:26 · 11 answers · asked by Barrett G 6

2006-10-20 04:58:38 · 8 answers · asked by MTSU history student 5

2006-10-20 04:52:19 · 13 answers · asked by C.Bhartiya 3

This calculation came from Quantron theory. Per this theory is it true and correct that dark matter is the basic component of mass?

2006-10-20 04:42:19 · 6 answers · asked by goring 6

2006-10-20 04:09:59 · 3 answers · asked by Anonymous

I'm worthless mathwise but follow astronomy avidly: If I'm understanding Einstine correctly, FTL is impossibile because mass increases with speed and exceeding it would cause you to reach infinate mass, needing infinate power to move...

My problem here: That's to an observer, for you (moving that fast) your mass is constant and thus no problem, right?

Seem more likely you simply couldn't DETECT something going faster then light. Besides, there is a glaring hole here. LIGHT goes the speed of light.

Regardless, I'm sure there's a way to do it. People said you couldn't break the sound barrier and before that most physisists said you'd be flayed-alive by wind-sheer if you hit 60mph.

2006-10-20 04:01:26 · 9 answers · asked by Anonymous

if they were both at the top of a hill, also has equal weight and the riders t he same weight , would the size in wheels make any difference or would the smaller wheels go round faster? would a skateboard be slower than a bike?

2006-10-20 03:58:56 · 18 answers · asked by robinhood 2

anything wil;l help
pleasepleaseplease

2006-10-20 03:55:28 · 3 answers · asked by ohmygoshhello 2

The question is number 9 following this pdf link http://bmat.org.uk/downloads/BMAT_Introductory_Specimen_Paper.pdf

Can someone please expalin how you work out this question to get the answer E(300N) and what formulae are used? Thanks

2006-10-20 02:42:28 · 4 answers · asked by Jack R 1

2006-10-20 02:41:06 · 12 answers · asked by relaxplease2005 3

2006-10-20 01:58:11 · 8 answers · asked by DAADUDE 1

2006-10-20 00:15:26 · 13 answers · asked by hicapaul 2

You must contemplate this question on all plains of exsistence to get the right answer. Quick responses will be the furthest from the truth. Do you know?

2006-10-19 23:01:19 · 10 answers · asked by oojzmoo 1

I mean lets that i have a bottle filled with liquid nitrogen at -192 celcius will this temperature ever grow upwards? If yes in about how much time?

2006-10-19 22:58:13 · 6 answers · asked by Anonymous

Is there a book or something like that on Internet? I don't want to go to a library :(

2006-10-19 22:12:09 · 5 answers · asked by liquiD 1

2006-10-19 22:05:50 · 3 answers · asked by telaganeedivenkataraodevarampadu 1

I am curious if M=EC2 is a valid formula as well. If true this would tell me how much energy is needed to create matter. If we extrapolate even further it would tell us how much "energy" there is in the universe based upon the estimates of matter in the known universe. Taking into account the law of entropy and general theories of residual energy loss we can work backwards towards the creation of the universe in knowing how much "energy" was needed to create said universe. This would be helpful to mankind as a whole in figuring out how long until the universe resets itself. If you've followed me this far just one more theory. If all the matter in the universe is gathered in one mass as the law of thermodynamics states it will be, then energy will be created by the tremendous forces and pressures of such an event. We could be in any number of a cycle of a repeating system. Of course this is all very vague and I have no clinical data to support such wild flights of fancy.

2006-10-19 21:34:16 · 6 answers · asked by Anonymous

A 2660kg car is being towed in a straight line by a tow truck. The car has its emergency brake and on. The coeifficent of friction is .540 and both the car and truck are traveling at 2.50 m/s^2. What is the tension in the cable between the vehicles.
Assume the cable is weightless.

2006-10-19 19:28:14 · 5 answers · asked by Anonymous

A person walks at constant speed of 5m/s along a straight line from point A to point B and then back along the line from B to A at a constant speed of 3 m/s . (a)her average speed over the entire trip ? (b) her average velocity over the entire trip ?

Note : average speed = distance travelled / time

2006-10-19 18:45:56 · 10 answers · asked by mr. h 1

In the ammonia (NH_3) molecule, the three hydrogen (H) atoms form an equilateral triangle; the center of the triangle is 9.40*10^-11 m from each hydrogen atom. The nitrogen (N) atom is the apex of a pyramid, with the three hydrogen atoms forming a base. The nitrogen-to-hydrogen atomic mass ratio is 13.9, and the nitrogen-to-hydrogen distance is 10.14*10^-11 m. Locate the center of mass of the molecule relative to the nitrogen atom, and explain how you got your answer.

2006-10-19 18:44:32 · 6 answers · asked by Anonymous

In the ammonia (NH_3) molecule, the three hydrogen (H) atoms form an equilateral triangle; the center of the triangle is 9.40*10^-11 m from each hydrogen atom. The nitrogen (N) atom is the apex of a pyramid, with the three hydrogen atoms forming a base. The nitrogen-to-hydrogen atomic mass ratio is 13.9, and the nitrogen-to-hydrogen distance is 10.14*10^-11 m. Locate the center of mass of the molecule relative to the nitrogen atom, and explain how you got your answer.

2006-10-19 17:47:59 · 3 answers · asked by Anonymous

Three masses located on a x - y plane have the following coordinates; a 5 kg mass has coordinates given by (2, -3) m; a 4 kg mass has coordinates (-4, 2) m; a 2 kg mass has coordinates (3, 3) m. Find the coordinates of the center of mass to two significant figures. Explain how you got your answer.

2006-10-19 17:10:30 · 3 answers · asked by Anonymous

And if Newton theory of gravitation was not exact ,why did Einstein use His Universal G constant in his Field Equation expression?

2006-10-19 17:03:05 · 3 answers · asked by goring 6

http://i22.photobucket.com/albums/b338/ravenatic520/Acertainnucleus.jpg
A certain nucleus, at rest, transforms into three particles. Two of them are detected; their masses and velocities are shown in the above link. (a) In unit-vector notation, what is the translational momentum of the third particle, with a mass of 11.7*10^-27 kg?

2006-10-19 16:53:25 · 2 answers · asked by Anonymous

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