As far as i know we use some carrier frequency because u = λf (u speed λ wavelength and f frequency) so we need a high frequency (small wavelength) carrier to transfer the wave. Also, the equation of the carrier is E = Ec(1 + msinwtm)sinwtc, tmod = modulated , tc = carrier, w = 2πf and m = Emax/Ec.
I think the answer is: that the charge between C1 and C2 is the same before and after the switch is closed, and the total charge of the circuit remains the same so: C1V1 + C2V2= C1V'1+ C2V'2 and also, the total charge of the circuit remains the same so you ve got two equations. I think that...
any ideas on solving this? (the capacitors are initially charged) I have some ideas but `im not sure which one is correct... I know that Q remains the same between C1 and C2, so that V1C1 + V2C2 = v1'C1 + V2'C2. From there, i don`t know if i can do the same thing for capacitors C2 and C3. I...