The resultant force on the box is
a) 2 newtons to the left.
b) 10 newtons to the right.
c) 10 newtons to the left.
d) 20 newtons to the right.

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.)

Dao makes a table to identify the variables used in the equations for centripetal acceleration. what quantities belong in cells x and y?

Which pair of quantities includes one quantity that increases as the other decreases during simple harmonic motion?