Identify two types of simple machines in this compund machine.
screw, incli plane
lever, pulley
lever, wheel and axle
screw, lever

Use the table to answer question 22 23 and 24.

Rohit is trying to tune an instrument

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