Please help me answer the following exercises. Show step by step how you got the answer, and please do it on paper so it's easier to understand

Example 16.5 Electric Potential Energy and Dynamics Goal Apply conservation of energy and electrical potential energy to a configuration of charges. Problem Suppose three protons lie on the m-axis, at rest relative to one another at a given instant of time, as in gure 16.9. If proton 9'3 on the right is released while the others are held xed in place, find a symbolic expression for the proton's speed at infinity and evaluate this speed when m = 2.00 fm. (Note: 1 fm = 10-15 m.) Figure 16.9 (Example 16.5) 15. T Q C Two point charges Q1 = +5.00 nC and Q2 = -3.00 nC are separated by 35.0 cm. a. What is the electric potential at a point midway between the charges? Answer + b. What is the potential energy of the pair of charges? What is the significance of the algebraic sign of your answer?Goal Apply conservation of energy and electrical potential energy to a configuration of charges. Problem Suppose three protons lie on the m-axis, at rest relative to one another at a given instant of time, as in _F_igure 16.9. If proton 13 on the right is released while the others are held xed in place, find a symbolic expression for the proton's speed at infinity and evaluate this speed when r0 = 2.00 fm. (Note.- 1 fm = 1015 m.) Figure 16.9 (Example 16.5) Goal Calculate fundamental physical properties of a parallel-plate capacitor. Problem A parallel-plate capacitor has an area A = 2.00 x 10-m' and a plate separation d = 1.00 x 10 m. (a) Find its capacitance. (b) How much charge is on the positive plate if the capacitor is connected to a 3.00-V battery? Calculate (c) the charge density on the positive plate, assuming the density is uniform, and (d) the magnitude of the electric field between the plates.10. E3 Consider the circuit shown in gure P18.10. a. Calculate the equivalent resistance of the 10.0-9 and 5.00-9 resistors connected in parallel. b. Using the result of part (a), calculate the combined resistance of the 10.0-9, 5.00-9, and 4.00-('2 resistors. c. Calculate the equivalent resistance of the combined resistance found in part (b) and the parallel 3.00-0 resistor. d. Combine the equivalent resistance found in gar; [c] with the 2.00-9 resistor. e. Calculate the total current in the circuit. f. What is the voltage drop across the 2.00-0 resistor? g. Subtracting the result of part [1) from the battery voltage, nd the voltage across the 3.00-0 resistor. h. Calculate the current in the 3.00-0 resistor. Figure P18.10 10.0 0 Example 18.5 Another Application of Kirchhoff's Rules Goal Find the currents in a circuit with three currents and two batteries when some current directions are chosen inaccurately. Problem Find I1, 12, and 13 in Figure 18.16a. Figure 18.16 (a) (Example 18.5) (b) (Exercise 18.5) 14.0 V 2.0 0 24.0 0 12 1+ 1.0 0 b + 10.0 V 6.0 0 - 12 50 V + 2.0 0 1.0 02 5.0 V a b27. a. Can the circuit shown in Figure P18.27 be reduced to a single resistor connected to the batteries? Explain. b. Calculate each of the unknown currents I1, 12, and Is for the circuit. Figure P18.27 2.0 0 + 24 V - 4.0 05. h -7 3.0 0 + 12 V 1.003 2 5.0 0 WW