List any two differences between distance and displacement.. b. When is an object said to have uniform circular motion. please send the answer faster

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.)

c, 1a hope this

are there options? cause you ain’t. real specific