Please help me with the following questions

3. A cylindrical (2.7x10^0) F capacitor, is connected in parallel to a (2.400x10^0) F parallel-plate capacitor. A potential difference of (2.80x10^1) volts is applied to this configuration. After a long time, what is the charge on the cylindrical capacitor's plates? Answer in coulombs (C) using scientific notation. Answer with a positive number.

Note: Your answer is assumed to be reduced to the highest power possible.

4. A cylindrical (2.00x10^0) F capacitor is connected to a power supply and is charged from zero to a final charge of (7.3x10^-5) on its plates. How much work is done to charge the capacitor? Give your answer in joules (J) using scientific notation.

Note: Your answer is assumed to be reduced to the highest power possible.

5. Two parallel plates, each of area (6.100x10^0) cm² are (2.30x10^0) mm apart. An insulating plastic material between the two plates has a dielectric constant of = (3.000x10^0). Calculate the magnitude of the charge on the plates in coulombs (C) if an electric field of (3.0x10^6) V/m is measured between them. Give your answer using scientific numerical notation.

Note: Your answer is assumed to be reduced to the highest power possible.