Question 10 of 10 Which expression correctly describes force using Sl units?
A. 1 N = 1 kg m/s2
B. 1 N = 1 kg. m/s
O C. 1 J = 1 kg. m/s2
O D. 1 J = 1 kg-m/s

Point charges q1 = 51 µc and q2 = −27 µc are placed 1.0 m apart, with q2 on the right. what is the force (in n) on a third charge q3 = 19 µc placed midway between q1 and q2? (assume the positive direction is to the right. indicate the direction with the sign of your answer.)