E=mc2 E = equivalent energy m = mass in kg c≅3×108m/s According to Einstein in Quantum fields which carry a certain amount of energy. In an empty space, the amount of energy gets larger as the fields get large. Hence energy and mass are equivalent.

# Tag: Physics Formulas

## Power Factor Formula For Single Phase

PowerFactor=TruePower/ApparentPower cosϕ=R/Z PowerFactor=119.365W/169.256VA PowerFactor=0.705 Cos45.152degrees=0.705 Here, it is noted that single phase power factor is less than 1. Note: For a purely resistive circuit, the power factor is 1.

## Hubble’s Law Formula

Hubble’s Law Formula is given by v=H0r Where, H0=Hubble′sConstant km/s/Mpc v = Recessional Velocity km/s r = distance of a galaxy in Mpc

## Cylinder Formula

CYLINDER FORMULA A cylinder is a stable structure comprising of two parallel faces and two circular bases. The radius of the circular base is the distance between the centers of the base to the edge of the cylinder. The two bases are perpendicular to the two faces of the cylinder. The Cylinder Formula is applied to calculate the surface area and volume of a cylinder. Calculate the total surface area and volume of the cylinder. The Cylinder Formula is expressed as, Total Surface area of a cylinder = 2πr(r + h)…

## Capacitance Formula

Capacitance is used to describe that how much any conductor charge can hold. It represents the ratio of charge flowing across the conductor to the potential applied. Capacitors are the conductors used for holding charges. Capacitance is the ability of a substance to store an electrical charge. Any object that can be electrically charged shows capacitance. A parallel-plate capacitor is a common form of an energy storage device. Capacitance is exhibited by a parallel plate arrangement and defined in terms of charge storage. When a capacitor is charged completely, there…

## Beam Deflection Formula

Beam Deflection Formula Deflection is a degree to which a particular structural element can be displaced by a considerable amount of load. It can be referred to as an angle or the distance. The distance of deflection of a member under a load is directly related to the slope of deflected shape of the member under that load. It can be calculated by integrating the function that describes the slope of the member under that load. The Beam is a long piece of a body capable of holding the load…

## Average Velocity Formula

As the word states, Average Velocity is the average value of the known velocities. Displacement over total time is Average Velocity. The average speed of an object is described as the distance traveled divided by the time gone. A velocity is a vector unit, and average velocity can be described as the displacement divided by the time. The units for velocity can be understood from the definition to be meters/second or in common any distance unit over any time unit. The average speed of a body is described as the distance covered…

## Brewster’s Law Formula

Brewster’s Law Brewster derived a relation amongst the polarizing angle ip and the refractive index mu which is well known as Brewster’s law. This says that the tangent of the polarizing angle is numerically equivalent to the refractive index of the medium. A polarizing angle is created when at a certain angle of incidence, the reflected light is completely polarized, and this specific value of the angle of incidence is identified as the polarizing angle. The polarizing angle ip hinges on the refractive index mu of the transparent material. The…