An object's position in meters and motion in meters per second can be described by 2 = -18 – 3+ - +2 during the time interval 0 Which of the following statements is the best description of the object's motion?

A10nc charge sits at a point in space where the magnitude of the electric field is 1500 n/c. what will the magnitude of the field be if the 10 nc charge is replaced by a 20 nc charge? assume the system is big enough to consider the charges as small test charges.