Physics - July 2006

Instead of 2 large masses and 2 smaller masses on the torsion balance.

2006-07-23 10:08:09 · 2 answers · asked by Gravity Boy 1

If energy can neither be created nor destroyed, does that imply that there is a set amount of total energy despite its form?

2006-07-23 09:53:59 · 9 answers · asked by will 1

According to the Lorentz Transformation, an object, as observed from a "stationary" frame of reference, moving at a speed approaching c will contract in the direction parallel to the direction of motion.
Say an object is moving towards a distant star with a speed approaching c. The length of the moving object will contract in the direction of motion as observed from an outside frame.
Here's the question: Can't it be said that the distance between the moving object and the distant star it's traveling towards is also contracting?
I'm not talking about the fact that the object is moving towards the star, & that's why it's getting closer. I mean that the effects of the Lorentz Transformation are also contributing to the contraction of the distance.

2006-07-23 09:36:14 · 6 answers · asked by vaporhut 1

Is it the tension in the suspending wire?

2006-07-23 09:20:07 · 4 answers · asked by Gravity Boy 1

Basically, when the system stops moving, do all the masses remain in contact due to the gravitational attraction or is there some space between the masses when they stop?

2006-07-23 09:03:44 · 2 answers · asked by Gravity Boy 1

I’m fairly familiar with the standard twin paradox, but I’ve never seen the paradox adequately resolved for a closed universe. Closed in the sense that if you travel in a fixed direction long enough, you’ll end up where you started; like if space were the surface of a hyper-sphere.

Anyone know how to resolve it? What would happen if two twins set out in opposite directions and (assuming the universe is closed) they ran into each other again? Calculations made by either of them would yield that the other should be older and they could ask each other who was the younger via radio transmissions without necessarily stopping.

I’ve seen one person resolve it (in “American Mathematical Monthly”) by saying that there IS a preferred reference frame in the universe, but that kind of flies in the face of one of the basic postulates of Relativity.

(Just FYI this stumped my physics professor, but he specializes in Particle Physics not Cosmology)

2006-07-23 08:39:42 · 3 answers · asked by Anonymous

please explane

2006-07-23 08:31:36 · 7 answers · asked by Anonymous

Would it be gravitational time or inertial time?

2006-07-23 08:22:00 · 2 answers · asked by goring 6

2006-07-23 07:45:37 · 7 answers · asked by goring 6

considering the large amounts of empty space between the nucleus of an atom, and it's electron orbits, and the amounts of space that must exist between sub-atomic particles- how much of my body is actual, solid matter?
i should be able to walk through walls, somehow, right?

2006-07-23 07:40:01 · 7 answers · asked by phil manutsac 1

How would you define physcis?
(In few words, please help me!)

2006-07-23 07:05:08 · 9 answers · asked by Anonymous

Is there any internet source of it?

2006-07-23 06:24:36 · 3 answers · asked by star123 2

2006-07-23 06:12:58 · 9 answers · asked by himalaya i 1

If the density of the water plus the density of the jug are added, should it not sink!?!

2006-07-23 06:11:24 · 10 answers · asked by Anonymous

It used to just be E=MC, but then it was discoverd otherwise. But what if mass does not increase as you approach C? What if neutrons do travel at maximum C? What if time is a constant? I wonder how the formulae would look then.
PS: i don't know what I'm talking about, but just pondering.

2006-07-23 05:56:07 · 8 answers · asked by Anonymous

Note Einstein did not allude to anything probabilistic.Was he right about forces warping space-time deterministically?

2006-07-23 05:34:33 · 2 answers · asked by goring 6

How far out does the shock-wave reach?

2006-07-23 05:31:49 · 8 answers · asked by Cozmik 2

2006-07-23 05:23:23 · 10 answers · asked by ROPD 1

2006-07-23 04:37:26 · 3 answers · asked by Anonymous

If a vehicle travels in a straight line to a point 10km distant which has an elevation of 1000m.Will the enrgy expended/fuel consumption be the same if the rate of climb is a constant 100m per 1km.compared to 9km flat,followed by a climb of 1000m in the final 1km.

2006-07-23 04:22:58 · 6 answers · asked by morasice17 3

I am looking at getting my PhD in optics. I heard it takes 7 years. Is that true? And how long does it take to get a masters?

2006-07-23 03:48:27 · 8 answers · asked by Goose 2

got to get immediate answers... please help..! :(
this is very important.. :(

2006-07-23 03:36:22 · 3 answers · asked by optimistic04 1

2006-07-23 02:40:15 · 8 answers · asked by cognito44 3

Hey, I am not so sure about the formulas for kinematics so what are tthe key fundamental concepts that I should know and what are the miscellaneous things to learn?

2006-07-23 01:57:16 · 5 answers · asked by edwinvandesar 1

and can this be harnessed

2006-07-23 01:43:55 · 5 answers · asked by gasp 4

2006-07-23 01:17:13 · 8 answers · asked by nikki999 2

2006-07-23 00:39:31 · 19 answers · asked by chivalc 2

I did this experiment at uni and was wondering if what i found was correct

2006-07-23 00:37:21 · 3 answers · asked by Julia 1

wahhh!!! i cant really think of any idea!!! our deadlne is on july 28!!! please help me!!!

2006-07-23 00:24:32 · 4 answers · asked by lauren_tlmr 1

2006-07-23 00:21:18 · 9 answers · asked by chivalc 2