[填空题]
A cardiac defibrillator *):dosd yp3xmu yhx2. pwz x4spo9 -v(is .zd+4 j5uuybtused to shock a heart that is beating erratically. A capacitordz5byu u4 +j.t in this device is charged to 5.0 kV and stores 1200 J of energy. What is its capacitance? $ \times10^{-5 }\,F$
