The Pacific Northwest (PNW), sometimes referred to as Cascadia, is a geographic region in western North America bounded by the Pacific Ocean to the west and (loosely) by the Cascade Mountain Range on the east.
Mean time between failures (MTBF) describes the expected time between two failures for a repairable system, while mean time to failure (MTTF) denotes the expected time to failure for a non-repairable system. the MTBF is the sum of the operational periods divided by the number of observed failures.
1 If you know total voltage and total current, you can use the equation Rt = Vt/It to calculate total resistance. 2  If you know the total power and the total voltage, you can use the equation Rt = Vt^2/Pt to calculate total resistance.ince the current is the same throughout the circuit, knowing the current of a single component will give you the total current. Depending on whether you know the the total voltage or total power, use the equation Rt = Vt/It or Rt = Pt/It2 to calculate the total resistance.