Which of the following represents a joule? Select one or more:
O a. kg/(m2/s2
O b. kg*(m2/s2)
O c. kg*(m/s2)
d. N*m

An inclined plane wrapped around a metal shaft is a a. lever b. screw c. pulley d. wedge

Rank the six combinations of electric charges on the basis of the electric force acting on q1. define forces pointing to the right as positive and forces pointing to the left as negative. rank positive forces as larger than negative forces. q1,q2,q3 = positive(+) q1 = + q2 = + q3 = - q1 = + q2= - q3= + q1= - q2= + q3= + q1= + q2= - q3= - q1,q2,q3 = negative

Smallest intensity of a stimulus that you can detect 50 percent of the time is