0.2 kg coffee cup is sitting on desk. Acceleration due to gravity is 9.8m/s^2 what is the force downward exerted

answer; /// the above statement is (true);

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.)

the answer is b

explanation: