what is e = mc square

e = energy,m= mass,c and square = multiply the speed of light

http://en.wikipedia.org/wiki/Mass%E2%80%93energy_equivalence

Einstein's mass-energy equivalence equation, E = mc², is a fundamental equation in physics that describes the relationship between energy (E), mass (m), and the speed of light (c). It states that the energy (E) of an object is equal to its mass (m) multiplied by the speed of light (c) squared.

To understand this equation, we need to break it down into its components:

1. E represents energy. In physics, energy is the ability to do work or cause a change in a system. It exists in various forms such as kinetic energy, potential energy, and electromagnetic energy.

2. m represents mass. Mass is the measure of the amount of matter in an object. It determines the object's resistance to acceleration when a force is applied to it and is typically measured in kilograms (kg).

3. c represents the speed of light. In a vacuum, the speed of light is approximately 299,792,458 meters per second (m/s). It is a fundamental constant in physics and plays a significant role in understanding the properties of the universe.

Now, to explain how to calculate the values using this equation:

1. If you want to find the energy (E) of an object, you need to know its mass (m) and the speed of light (c). Simply multiply the mass by the speed of light squared (c²) to obtain the energy.

E = m * c²

2. If you have the energy (E) and want to find the mass (m), rearrange the equation to solve for mass:

m = E / c²

3. Similarly, if you have the mass (m) and want to find the speed of light (c), rearrange the equation to solve for the speed of light:

c = √(E / m)

Remember, the equation E = mc² signifies the incredible amount of energy that can be generated from a small amount of mass. It has significant implications in understanding nuclear reactions, the behavior of particles at high speeds, and the conversion of matter into energy, as demonstrated in nuclear weapons and nuclear power.