A Navy jet will travel 67m/s approaching an aircraft carrier. Upon landing a hook grabs a stop wire bringing the jet to a screeching halt with an acceleration of -26.8 m/s2. How much time does the jet need to come to a stop?

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