Which principle states that the net electrical force on a specific charge is equal to the sum of the vector components of the charges applying forces on it? angle principle
summation principle
superposition principle
vector principle

Agas contained within a piston-cylinder assembly undergoes three processes in series: process 12: compression with pv= constant from 1 bar and 1 liter to 4 bar. process 23: constant pressure expansion to 1 liter. process 31: constant volume calculate the pressure and volume at each state, and sketch the processes on a p-vdiagram labeled with pressure and volume values at each numbered stat

In a good thermo flask the main cause of heat loss is

Efficiency is the ratio of to for a system a)power in to power in b)power in to power out c) power out to power out d) power out to power in