A girl swings on a playground swing in sucha way that at her highest point she is 2.4 mfrom the ground, while at her lowest point sheis 0.8 m from the groundAt what height above the ground will thegirl be moving at a speed half of her maximumspeed

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