In physics, a characteristic length is an important dimension that defines the scale of a physical system. Often, such a length is used as an input to a
In celestial mechanics, the mean anomaly is an angle used in calculating the position of a body in an elliptical orbit in the classical two-body problem.
Power gain (in nepers)
In electronics, gain is a measure of the ability of a two-port circuit (often an amplifier) to increase the power or amplitude of a signal from the input
In chemistry, a reaction quotient: Qr is a function of the activities or concentrations of the chemical species involved in a chemical reaction. In the
Peukert’s law, presented by the German scientist Wilhelm Peukert in 1897, expresses the capacity of a battery in terms of the rate at which it is
Momentum is a measure of an object tendency to move in a straight line with constant speed. Momentum has a direction and can be used to predict the