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General and Special Relativity

Relativity is the theory stating that all measurements depend on the relative motions of the observer and the observed. The theories of general and specific relativity were both proposed by Albert Einstein.

813 Questions

What is temporal distortion?

A temporal distortion occurs when 2 dimensions interact with one another, the observer may be able to catch a fleeting glance into 'another world'. A good example of a temporal distortion are ghosts. Ghosts are perceived as visitations from the afterlife where as all it is, is 2 dimensions existing simultaneously and temporarily coexisting. Man is indeed capable of creating a temporal distortion which can be induced using ancient mystical school teachings and more commonly, hallucinogens.

Can the displacement-time graph of a moving body be a straight line perpendicular to time axis?

No.The displacement-time graph of a moving body can not be a straight line

perpendicular to the time axis. A graph like that would indicate that the body

moved with infinite speed, moved from one place to another in zero time, or

occupied many different places at the same time. Considerable evidence has

piled up which suggests that none of those things can happen.

How would you explain the theory of relativity?

Special theory of relativity:

1.The laws of physics are same for all observers in uniform motion relative to one another.

2. The speed of light is same ...

Later Einstein proposed General relativity.

What are uv rays used for?

UV rays are harmful. They need to be blocked. Ozone blocks them.

If gravity is not a force in general relativity how does a stone fall back to earth when thrown up?

I try not to eat the stone to begin with :D But seriously, relativity doesn't deny the attraction between massive bodies. It just explains a little more precisely how that attraction works.

What is mass potential energy?

Matter can be created from energy, and vice versa. When condensing matter from energy, that energy is stored in the mass, which can later be converted back into energy. Derived from Einsteins equation, the conversion is m=E/c^2. Conversion of a matter anti-matter reaction is 100% efficient.

A car accelerates from rest and accelerates at 3 ms-2 how long it will take to reach a velocity of 30ms-1?

Acceleration = (change in speed) / (time for the change)

3 = (30) / (time)

3 x (time) = 30

time = 30/3 = 10 seconds

What is the relationship between capacitance and frequency?

This is a very broad generalization, but in general, increasing the value of one or more

capacitors in an electronic circuit will decrease the resonant frequency of one or more

sections of the circuit.

Is there anything faster than light?

Yes, "Dark". Dark also know as Black, is faster than light. Just research the properties of a Black Hole to understand. Here is a link what anther person said on the matter: Anything_faster_than_speed_of_light

List the forms of energy in the human body?

-- chemical

-- thermal

-- gravitational potential

-- spring potential

-- kinetic

-- electrical

-- spiritual

-- creative

-- intellectual

How do you convert hertz to gravity?

You don't. Those two are completely unrelated, so you don't convert from one to the other.

What two things about forces are important when forces are combined?

The magnitude (size) AND the direction, of all the forces,

all affect their combination.

A skier slides horizontally along the snow for a distance of 21 meters before coming to rest The coefficient of kinetic friction is 0.050 how fast was the skier going?

For the skier to come to rest, it has to lose all its kinetic energy. Ignoring the drag force caused by air, kinetic energy is strictly lost through friction with the snow. The kinetic friction force Fk is mu, the kinetic friction coefficient, times the normal to the surface, in that case the total weight M*g of the skier. The total work the friction does against the skier is thus Fk times x, where x is the distance over which the friction force acted. Remembering the formula for kinetic energy, the principle of energy conservation thus dictates the following equality :

1/2*M*v^2 = mu*M*g*x

We see the total mass of the skier becomes irrelevent since it cancels out of the right and left hand side of the equality. Therefore, the speed at which the skier was going before starting to slow down is

v = sqrt(2*mu*g*x)

and since

mu = 0.050

g = 9.81 m/s^2

x = 21 m

then v = 4.539 m/s, which is equivalent to 16.332 km/h once you multiply by 3.6 km/h per m/s.

What is the spacetime continium?

Think of a 3-D grid. that cover's every millimetre of our universe. One of the lengths is time-space, one is mass and energy and the other one is unknown.

The Space-Time continuum is the gathering of the three space dimensions (x,y,z) and the time dimension (t) used to localize everything and every interactions in our universe.

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This depends upon the Theory of Everything (TOE) used to describe the observable physics of the universe.

In Extreme Relativity:

  • space is scalar causal relationships (this than that)
    • relative distances determined by quantum steps
  • time is recursive causal relationships (that if part of this and part of that)
    • relative time determined by quantum steps

The observation of the connected systems of causal relationships forms the base of space/time.

The supposition is that since there exists instantaneous properties (quantum entanglement - electromagnetics, and gravitational aberration - gravity) that the foundations of observable physics are superimposed on an instantaneous foundation. This unifies all forms of physics.

This create an environment supporting extreme relativity.

In this environment space is infinite but relativistic. Look up at a star at night. The star is many millions of years since the photon began travelling. From your position move over some small amount, or a large amount, and you will see the same photons. No matter how close you get to each point of reference, you have the same causality; the same magnitude assertion for what you observe.

This is all based upon the causal properties of functioned quantum entangled systems.

What is the similarity between Screw Gauge and Vernier Caliper?

Very little, the screw gauge checks the pitch of threads while the

vernier caliper is use to accurately measure distances.

Should you take admission bmit sonipat?

Depends on your AIEEE ranking, if u have got ranking more than 70000 or near around 1l u shld take if u have rank

Space-time theorem of general relativity?

The space-time theorem of general relativity states that the curvature of space-time is determined by the distribution of matter and energy within it. It establishes a direct relationship between the geometry of space-time and the distribution of mass and energy. This theorem forms the foundation of Einstein's theory of general relativity and helps explain the effects of gravity on the fabric of space-time.

What factors influence gravitational force of attraction?

-- The masses of the two objects being drawn together by mutual gravitational forces.

-- The distance between the centers of the two objects.

This is a complete list. These are the only factors that influence the strength of

the gravitational force between them.

Is the twin-paradox caused by acceleration?

Acceleration is one factor in the Twin Paradox, which investigates why a moving reference frame experiences time at a different rate from a stationary frame (and why this effect only works in one direction). The effect of special relativity "slows down" time on an object accelerated and maintained at increased velocity with respect to its original location. However, general relativity also affects time passage and will "speed up" time on an object accelerated to a different gravitational potential (for example, an orbiting satellite). Experiments with atomic clocks in 1972 and 1997 established that clocks moving at increased altitude (in any direction) will run faster because of their increased distance from the Earth's gravitational center. Clocks travelling westward also run faster because they are moving more slowly than the Earth spins. Clocks travelling eastward were moving faster than the Earth's spin and this caused them to run more slowly, as predicted by special relativity. Clocks at the poles will also run faster than clocks at the equator for the same reason, but the difference is measured in billionths of a second.

How the massive bodies can exert gravitational force?

We are always asked questions about one body exerting gravitational force,

and we must emphasize again: That's the least helpful way to think about it.

Gravitational force always involves two bodies. The strength of the force depends

on the mass of both bodies, the force acts along the line between the centers of

both bodies, and both bodies feel gravitational forces with the same strength.

Whatever force the earth 'exerts' on you that draws you toward it, you exert the

same force on the earth that draws the earth toward you.

What color travels fastest?

As long as all the light is traveling through the same stuff,

all colors have the same speed.