An isolated parallel-plate capacitor (not connected to abattery) has a charge of Q = 2.4×10−5C. The separation between theplates initially is d = 1.2 mm, and for this separation thecapacitance is 3.1×10−11F. Calculate the work that must be done topull the plates apart until their separation becomes 8.3 mm, if thecharge on the plates remains constant. The capacitor plates are ina vacuum.
Express your answer using two significant figures
