Will give ! which of the following represents a type of change (physical or chemical) that is different from the rest? a) setting an inflated balloon on fire b)stretching a balloon before blowing air into it c) deflating a balloon by releasing all the air present in it d)twisting a long balloon to change its shape to form a flower

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