1. Consider these three patterns of water waves: A B C a. Describe the similarities and differences of the three patterns of water waves. b. Experiment to make similar patterns, then explain how you can use the simulation to make each.

a charge 3q is at the origin, and a charge −2q is on the positive x axis at x=a. part a where on the x-axis would you place a third charge so it would experience no net electric force? enter an expression for the exact answer, which will involve a square-root sign. (do not enter an approximate decimal answer.)

do you have a formula possibly