The diagram shows the forces on an object.

which best explains the movement?

the force of friction is preventing the motion of the object.
the push force is greater than the frictional force.
the force of friction is slowing down the object’s movement.
the push force is equal to the force of friction.

Option 1, the force of friction is preventing the motion of the object.

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) up is the direction the magnetic force is acting on the charge.