Stress, fluids, circuits and structures
Internal force per unit area in a material.
Relative deformation of a material.
Stiffness of a material (stress over strain).
Conservation of energy in fluid flow.
Predicts laminar vs turbulent flow.
Power in an electrical circuit.
Resistance of a rectangular section to bending.
Stress in a beam due to bending.
Change in length due to temperature change.
Ratio of useful output to input power.
Rotational force about a pivot.
Total resistance of resistors in series.
Total resistance of resistors in parallel.
Ratio of ultimate strength to allowable stress.
Real power in a balanced three-phase system.
Mechanical power from torque and angular speed.
Ratio of teeth (or speeds) between gears.
Force amplification of a machine.
Heat conducted through a material.
Energy stored in an elastically deformed body.
Volume of fluid passing per unit time.
Conservation of mass in incompressible flow.
Ratio of real power to apparent power.
Voltage ratio equals the turns ratio.
Ratio of failure capacity to actual load.
Charging time constant of a resistor-capacitor circuit.
Rotational speed of an AC motor field.