Electron Speed Calculator Classical vs. Relativistic Speeds from Kinetic Energy Introduction This calculator determines the speed of an electron given its kinetic energy (KE). It provides results from two perspectives:

Ideal Gas Law Calculator PV = nRT Solve for Pressure (P) Solve for Volume (V) Solve for Moles (n) Solve for Temperature (T) Pressure (P) Pascals (Pa) Kilopascals (kPa) Atmospheres

Laser Brightness (Irradiance) Calculator Calculator Instructions Theory & Formulas Laser Power (P): mW (milliwatts) W (watts) Initial Beam Diameter at Aperture (D₀): Enter diameter in millimeters (mm). Full Angle Beam

Displacement Calculator d = v̄t Solve for Displacement (d) Solve for Average Velocity (v̄) Solve for Time (t) Displacement (d) meters (m) kilometers (km) feet (ft) Average Velocity (v̄) m/s