What is the formula of general relativity?

What is the formula of general relativity?

Relativity Equations. G=−8πGc4T, where the left-hand side is the Einstein tensor, the right-hand side is the stress-energy tensor, and c is the speed of light. The field equation in general relativity involves what are known as metrics, which are measures of intervals in space and in time.

What are the 4 formulas for physics?

Important Physics Formulas Wave = ∆x ∆t wave = average velocity ∆x = displacement ∆t = elapsed time.

What are the 8 theory of relativity?

The special theory of relativity was based on two main postulates: first, that the speed of light is constant for all observers; and second, that observers moving at constant speeds should be subject to the same physical laws.

How many equations are in general relativity?

What Does It Mean? The Einstein Field Equations are ten equations, contained in the tensor equation shown above, which describe gravity as a result of spacetime being curved by mass and energy.

What are the 3 laws of Einstein?

I begin the discussion by offering the following three laws: ▸ The laws of physics are identical in all non-accelerating (that is, inertial) frames. ▸ The vacuum speed of light, c, is the same for all inertial frames. ▸ The total energy E of a body of mass m and momentum p is given by E=√m2c4+p2c2.

Is general relativity just gravity?

General relativity is a theory of gravitation developed by Albert Einstein between 1907 and 1915. The theory of general relativity says that the observed gravitational effect between masses results from their warping of spacetime.

What is the 5 rule in physics?

The 5% error rule = the absolute value of the y intercept / highest y value *100. If above 5% you keep the y intercept. If below 5 % you can cancel the y intercept.

What is the hardest formula in physics?

Yet only one set of equations is considered so mathematically challenging that it’s been chosen as one of seven “Millennium Prize Problems” endowed by the Clay Mathematics Institute with a $1 million reward: the Navier-Stokes equations, which describe how fluids flow.

What is the most famous formula in physics?

The equation E = Mc2 is perhaps the most famous equation of twentieth- century physics. It is a statement that mass and energy are two forms of the same thing, and that one can be converted into the other (ibid., p. 493).

Is gravity a theory or a law?

Universal Gravity is a theory, not a fact, regarding the natural law of attraction.

Is time relative or absolute?

The time and mass are absolute; they do not depend on the frame of reference. The gravity has no direct effect on light.

What are the two main principles of general relativity?

The first postulate is the relativity principle: local physics is governed by the theory of special relativity. The second postulate is the equivalence principle: there is no way for an observer to distinguish locally between gravity and acceleration.

Is general relativity E mc2?

This was first demonstrated by Albert Einstein’s Theory of Special Relativity and famously expressed in his iconic equation, E=mc2, where E stands for energy, m for mass and c for the speed of light (squared).

What is general relativity in simple words?

General relativity is a theory of space and time. The theory was published by Albert Einstein in 1915. The central idea of general relativity is that space and time are two aspects of spacetime. Spacetime is curved when there is matter, energy, and momentum resulting in what we perceive as gravity.

What is the formula E mc2 used for?

E = mc2. It’s the world’s most famous equation, but what does it really mean? “Energy equals mass times the speed of light squared.” On the most basic level, the equation says that energy and mass (matter) are interchangeable; they are different forms of the same thing.

What is G in general relativity?

evolution of the universe

a =	scale factor (size of a characteristic piece of the universe, can be any size)
Λ =	cosmological constant (energy density of space itself, empty space)
c =	speed of light in a vacuum
G =	universal gravitational constant
π =	the famous constant from geometry