A large electroscope is made with "leaves" that are 78-cm-long wires with tiny 21-g spheres at the ends. When charged, nearly all the charge resides on the spheres. If the wires each make a 26 angle with the vertical (Fig. 16-55), what total charge Q must have been applied to the electroscope? Ignore the mass of the wires

a) 4.6 C

b) 1.6 X 10^-6 C

c) 4.6 X 10^-7 C

d) 4.6 X 10^-5 C

e) 4.6 X 10^-6 C