3 ms·

Never. It's either no units (theoretical physics), eV (particle physics) or Kelvin/Celsius for experimental physics.

• ravar 8y ago
  Technically there is Rankine if you want to do thermo in imperial units.
  • EForEndeavour 8y ago
    Technically, Rankine and Fahrenheit are not imperial units.
  • godelski 8y ago
    I've only known engineers to use Rankine and they hate it. I've never known a scientist to use it.