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uptu top 100 engineering college ki list

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Convex lenses are thicker in the middle than at the edges. They refract toward the center. Only people have convex lenses. Concave lenses are used in telescopes and glasses. Concave lenses are thinner in the middle than at the edges. When light passes through concave lenses always bend away from each other toward the edges of the lens.
A convex or "positive" lens is thicker in the middle and thinner at the edges. A concave, or "negative" lens is thinner at the middle and thicker at the edges. Convex lenses project a real image behind the lens; concave lenses project a virtual image in front of the lens.

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-- chemical

-- thermal

-- gravitational potential

-- spring potential

-- kinetic

-- electrical

-- spiritual

-- creative

-- intellectual

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a winner Its not a quote its a riddle. The answer is "e"

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Hawking radiation is not used for anything; however, the theory says that black holes will slowly evaporate. What happens is a virtual particle pops into existence near the event horizon of a black hole, where a photons randomly turns into a particle an its antiparticle for about 10^(-31) seconds. The particles quickly annihilate and the law of conservation of energy and respected.

However, near a black hole, one of the particles falls into the black hole and the other does not, meaning they do not annihilate and conserve the law of conservation of energy. In order to respect the law of conservation of matter, the mass of the particle that fell in must be negative to keep the total change in mass of the universe at zero. These decreases the total mass of the black hole and, eventually, will cause it to evaporate.

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Same as "run for office". Announce your desire for the office,

and attempt to persuade voters to elect you.

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It says that the speed of light in a vacuum measured in any inertial frame of reference is equivalent to the speed of light in a vacuum measured in any other inertial frame of reference.

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Everywhere. It is the totality of everything that exists.

Well, almost everything. Well, not almost everything. The current "Theory of everything" that unifies physics predicts that we are merely in one universe, "floating" in an "ocean" of parallel universes, the "multiverse." This has yet to be verified.

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The mass of an object is how much matter is contained within that object. The SI unit of measure for mass is the kilogram. The word mass should be used instead of the term 'weight', which suggests the force of gravity acting upon the object.

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-- You could apply a force to a lump of it, measure its acceleration, and

show that it obeys the formula [ F = M A ] .

-- You could accelerate it to 75% of the speed of light, then perform the

above action on it, and show that its mass appears to have increased 15%

since it was standing still in the lab, which shows that it's obeying the formula

for the relativistic increase of mass at high speed.

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Mass changes how time passes near it, versus how it passes far from it. Test objects are still seen to speed up as they fall towards massive objects. Light suffers "Shapiro time delay" when its path includes travelling through space that is near a massive body. So I guess the full answer requires you to tell us who is deciding what is slowing down, and how / where you are measuring relative to.

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As far as we know, the mass of the black-hole and it's energy would increase.

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Einstein formulated the spacetime that is the four dimensions of space namely: length, breadth, thickness and a fourth dimension: time are interwoven. apart from euclid's geometry where time is said to move at a constant rate and is unchangable, this theory says that time also can be bent, slowed down or even speeded up just like the other dimensions like length.

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Probably not.

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If you go whizzing past me at a high speed, then I'll notice that your wristwatch

looks like it's running slow, and the pitch of your voice has dropped. I'll think to

myself, "Hey ! I'm OK, but his time has slowed down."

At the same time, you'll notice that my wristwatch looks like it's running slow, and

the pitch of my voice has dropped. You'll think to yourself, "Hey ! I'm OK, but his time

has slowed down."

We'll both be correct.

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Another contributor added:

When something goes past you at high speed, it takes longer for the light bouncing off of that thing to reach the observer. This also goes in reverse, say, if you are traveling at high speed and you see that someone standing still has slowed down. To the observer (you) the person standing still is traveling away from you and you are standing still.

___________

This doesn't mean that after the traveler stops, everyone's time will be back in synch. If you start off on earth and accelerate to near the speed of light and you travel for a significant length of time according to earth observers, when you return LESS TIME will have passed for you; you will be younger (relative to your velocity and time away) than the twin brother you left on earth. You will literally have experienced less time.

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Elasticity is measured as Young's Modulus (a.k.a Modulus of Elasticity).

Young's Modulus is equal to the maximum stress that can be placed on an object that will not PERMANENTLY alter the shape of the object over the strain (think deformation) induced by that stress.

************** Elasticity is a Measure of Stress/Strain **********************

Larger stress with little strain = more "elastic"

So,

A steel ball can undergo a large amount of stress with very little stain induced.

A rubber ball on the other hand will show a larger amount of strain (deformation) with a smaller amount of stress placed on it.

Example:

The stress-strain curve below shows steel compared to a polymer and a rubber. As you can see, steel can have a lot of stress placed on it with little deformation while rubber has large deformation with little stress.

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rate of acceleration

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Sure. Anything that is mass-energy does.

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yes, anything with a lower atomic number would be lighter, for example, helium is lighter than air, which is why balloons float when filled with helium... the lighter substance rises above the heavier....

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Please visit the following sites for details explaining the difference between the two: http://archive.ncsa.illinois.edu/Cyberia/NumRel/GenRelativity.html http://archive.ncsa.illinois.edu/Cyberia/NumRel/SpecialRel.html

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Only in three special cases.

E=mc2

E=1/2mv2

and

E = GM/r

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Relativity describes universal physical properties. Dynamic Physics would be how I'd classify it.