Net force F causes mass m1 to accelerate to rate a. A net force of 3F causes mass m2 to
accelerate at rate 2a. What is the ratio of mass m1
to mass m2 ?

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.