If Tony and Tanya both run at the same speed and in the same direction and they both run for the same amount of time, what can you say about the distance they travel?

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.)