After taking off from john f. kennedy airport, an airplane travels 500 kilometers due north and then 700 kilometers west. what is its total displacement?

Two point charges are separated by a certain distance. how does the strength of the electric field produced by the first charge, at the position of the second charge, change if the second charge is doubled? a. the field does not change b. the field strength decreases by half. c. the field strength doubles d. the field strength quadruples