Acar left point a at 7: 30 am and arrived at point b, 162 miles away at 10: 30 am. what was its average speed in miles per hour? 53545556skip

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