If an object was accelerating at 10 m/s^2, and a force of 10 newtons was required to accelerate it, what was the object's mass

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 closer the planet is to the sun, the larger the gravity