Two newspapers ,Graphic and Time delivered to 40 houses in Adentan. Each houses receives at least 1 copy of a newspaper. In all 26 copies of time delievered. Find the numbers of houses which recieve time only​

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