voltage Va is measured from Node A (top left node) to ground and the Node Nod v, is measured from Node B (top right node] to ground in the circuit dr awn below Tne nd reference node is indicated by the ground symbol in the schermatie. Use Nodal The analysis in this problem 400 s3 Node B Node A 72A R 1 12? S2 6.4A 576V a) Convert the voltage source (Vs1) and resistor Ri into an equivalent current source in parallel with a resistor. Draw the complete modified circuit diagram based on the circuit shown above with your conversion applied b) Write the KCL (Kirchhoff's Current Law) Nodal equations after performing part a of the problem. You must write two KCL Nodal equations. Of course, the Ohm's law equations applied to each resistor must be substituted into the KCL equations. c) Find the Node Voltage Va and find the Node Voltage Vs by solving the KCL Nodal equations for Node Voltage Va and Node Voltage Va (provide numerical values with correct units). d) Find the Voltage across each of the resistors (resistors Ri, R2, and R,) in the circuit shown directly above (that is, the original circuit for this problem). e) Find the Current through each of the resistors (resistors Ri, R2, and Ra) in the circuit shown directly above (that is, the original circuit for this problem)