Objects 1 and 2 attract each other with a electrostatic force of 18.0 units. if the charge of object 1 is doubled and the distance separating objects 1 and 2 is tripled, then the new electrostatic force will be units.

An electron moves with a constant horizontal velocity of 3.0 × 106 m/s and no initial vertical velocity as it enters a deflector inside a tv tube. the electron strikes the screen after traveling 26 cm horizontally and 19 cm vertically upward with no horizontal acceleration. what is the constant vertical acceleration provided by the deflector? (the effects of gravity can be ignored.)