Calculators

Analyzes forces and distances in a lever system based on the fulcrum position.

Calculates the horizontal angle (azimuth) of a celestial body or a point relative to a reference direction (e.g., North).

Calculates electrical power using voltage, current, and resistance, based on the formulas P=VI, P=I²R, and P=V²/R.

Calculates the component values (e.g., in L-networks) needed to match impedances for maximum power transfer.

Calculates the change in angular position of a rotating object.

Calculates the output voltage from a simple circuit that divides a source voltage across two resistors.

Calculates the Reynolds number, a dimensionless quantity that helps predict fluid flow patterns (laminar vs. turbulent).

Calculates the kinetic energy of an object moving at relativistic speeds, considering the effects of special relativity.

Estimates how long a battery will last based on its capacity and the device's power consumption.

Calculates the angles of constructive interference (maxima) for light passing through a diffraction grating. This calculator uses the grating equation: d * sin(θ) = m * λ, where d is the slit separation, θ is the angle of diffraction, m is the order of the maximum, and λ is the wavelength of light.