Sudden expansion of a pipe (total head loss)
Atwood number
Shockley diode equation (in real transistors)
Parallel axis theorem ( at mass moment of inertia)
Bipolar junction transistor (Common-emmiter current gain )
Capital asset pricing model ( including size premium and specific risk)
Rayleigh Number
Logarithmic Mean Temperature Difference
Surface area of a regular tetrahedron
Electric flux (in a uniform field)