Task: Text Categorization
Input (English): The autocorrelation function is related by the Fourier transform to the spectral density of this quantity according to the Weiner-Kinchin theorem. In the relativistic limit, this quantity is proportional to the sixth power of the Lorentz gamma. One formula giving this quantity is integrated between two time periods in order to give the magnitude of the radiation reaction, and states that it is proportional to charge squared times acceleration squared. Those expressions are named for Lienard and (*) Larmor. Equating the input and output value of this quantity is used to derive the mechanical advantage. This quantity is given by the integral of the dot product of force and velocity, or the derivative of work with respect to time. For 10 points, name this quantity measured in watts.
Output (English): Science