# E mc² Equation

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The equation E = mc2 is the world's most famous equation which we will see further also, but we can ask what it really means? " The term that is energy equals mass times the speed of light squared." we can say that on the most basic level, the equation generally tells us that energy and mass that is the matter are interchangeable. We can also say that they are different forms of the same thing. That is said to be under the right conditions, energy can generally become mass and vice versa. We humans usually don't see them that way but we can ask that how can a beam of light and a walnut be different forms of the same thing?—but Nature does.

### mc2 Equation

The equation that is E = mc2  is of physicist Albert Einstein’s theory which is of special relativity expresses the fact that mass and energy are the same physical entity. And these entities can be changed into each other. In the equation, the increased relativistic mass denoted by letter m of a body times the speed of light squared denoted by letter c2 is equal to the kinetic energy denoted by letter E of that body.

In the theories of physics, the one which is prior to that of special relativity is that we can say the mass and energy which were viewed as distinct entities. Furthermore, we can also say that the energy of a body which is at rest could be assigned an arbitrary value. In relativity which is special, however, it is said to be the energy of a body at rest is determined to be mc2. Thus we can say that each body which is of rest mass denoted by the letter that m possesses is said to be mc2 of “rest energy,” which is said to be potentially available for conversion to other forms of energy

The relation which is between mass-energy moreover is said to imply that if energy is released from the body as a result of such a conversion. So that then the rest mass which is of the body will decrease. Such a conversion is of rest energy to other forms of energy that generally occurs in ordinary chemical reactions. But here we can also say that much larger conversions occur in nuclear reactions. This is we can say is particularly true in the case of nuclear fusion reactions that transfer the hydrogen to helium in which 0.7 percent of the rest energy which is original of the hydrogen is converted to other forms of energy.

### mc2 Einstein Equation

The formula is said to define the energy which is denoted by capital letter E of a particle in its rest frame as the product of mass which is denoted by letter m with the speed of light squared that is c2. Equivalently we can say that the mass that is of a particle at rest is said to be equal to its energy which is devoted by letter E divided by the speed of light squared that is c2. We can say that because the speed of light is a number which is large in everyday units is said to be approximately 3×108 meters per second.

The formula usually implies that a small amount of rest mass corresponds to an enormous amount of energy which is said to be independent of the composition of the matter. The rest mass that is also known as the invariant mass is the mass that is measured when the system is at rest. The mass which is at rest is a fundamental property which is physical that generally remains independent of momentum even at extreme speeds approaching the speed of light. We can note that its value is the same in all inertial frames of reference. This is the particle which is massless such as photons that generally have zero invariant mass but we can say that massless free particles have both energy and momentum. This is said to be the equivalence principle that generally implies this thing that when energy is lost in chemical reactions then the nuclear reactions and other energy transformations and the system will also lose a corresponding amount of mass.

### E Equals mc Squared Full Equation

The terms that are energy and mass are said to be equivalent states that all objects having mass known as the massive objects also have corresponding intrinsic energy which is even when they are stationary. In the rest frame which is of an object that is said to be so by definition that it is motionless and so has no momentum. The terms mass and energy are equivalent and they differ only by a constant that is the speed of light squared.

In Newtonian mechanics, it is said to be a motionless body that has no kinetic energy. And along with that it may or may not have other amounts of the internally stored energy which is said to be like chemical energy or thermal energy. These are the energies in addition to any potential energy that it may have from its position in a force of the field. These energies that generally tend to be much smaller than the mass of the object which is multiplied by the speed of light squared which is said to be on the order of 1019 Joules that is for a mass of one kilogram.  We can say that due to this principle the mass which is of the atoms that come out of a nuclear reaction is said to be less than the mass of the atoms that go in and the difference in mass shows up and light and heat with the same energy which is equivalent as the difference. In analyzing these explosions we have discussed that Einstein's formula can be used with energy that is E as the energy released and removed and m as the change in mass.

An object which usually moves with different speeds in different frames of reference is said to be depending on the motion of the observer. This implies the energy which is kinetic in both Newtonian mechanics and relativity that is frame dependent. so we can say that the amount of energy which is relativistic that an object is measured to have depended on the observer. The relativistic mass that is of an object is given by the energy that is relativistically divided by c2.

Q1. Explain What E mc² is Used for.

Ans: Scientist Einstein explained the relationship which is between mass and energy. That is, E=mc². In other words, we can write it as energy = mass x the speed of light squared. It sounds just simple and its simplicity does belive the genius which is required of Einstein to express it so elegantly.

Q2. Explain Why C is Squared is in E=mc².

Ans: In the equation of  Einstein's that is said to be E=mc². The symbol that is C is not there just because it is depicting the speed of light. The symbol C is in this equation that is because it is a natural constant that converts the value which is of the mass into a value that is for energy in the units of length and time in which the speed of light is measured.

Q3. Does E mc² Apply to Humans?

Ans: The answer is no. First of all, we can say that the body generally does not have that much energy in the first place, that is a body has a mass that perhaps could be converted to energy. But we can say that very little of it is actually in the form of energy currently so don't say it has that too much energy inside it.

Q4. What is C in the Equation E=mc²?

Ans: Scott Chase wrote in 1992 on sci. physics that is we can say that "anyone who read hundreds of books which are written by sir Isaac Asimov that generally knows that the Latin word which is for speed' is celeritas'. hence we can say that the symbol `c' for the speed of light".