Question

PLEASE HELP AND EXPLAIN

e.In open heart surgery, a much smaller amount of energy will defibrillate the heart. Heart defibrillators store 38 J of energy and the voltage is applied to a 7.3 μFcapacitor. Find the amount of stored charge. Give answer in terms of mC.

d.An electrostatic paint sprayer has a potential of 25.0 kV that repels paint droplets onto a grounded object. What charge must a 0.8 mg drop of paint have to arrive at the object with a speed of 13 m/s? Give answer in terms of 10-10 C.

c.How far apart are two conducting plates that have an electric field strength of 2.6×103 V/m between them, if their potential difference is11 kV?

b.What is the energy stored in the 10.5 μF capacitor of a heart defibrillator charged to 7.9 kV?

1.a.A 0.49 cm diameter plastic sphere, used in a static electricity demonstration, has a uniformly distributed 34 pC charge on its surface.What is the potential near its surface?