Which is the work required to move a charge? electric field

electric field line

electric potential

electric potential energy

In 1980, alfa romeo introduced the first system to smooth a rough idle caused by ignition and camshaft timing changes.

How many dots must be added to the symbol to properly represent a standard nitrogen ion? a) 1 b) 3 c) 5 d) 8

Oxygen undergoes an isentropic expansion from 120 degree c and 280 kpa absolute to 140 kpa absolute. determine the final temperature of the oxygen and the amount of work per kg of o_2 produced in the process if it is adiabatic.