Deltoid function, daily use, and a common exercise you can do to strengthen this muscle. Please, help me.

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.)

k2s for potassium sulphide

conduct current i mean it makes sense