Metallic blocks x, y, and z were placed in the graduates a, b, c. The initial volume of liquid in the equal sized graduates was 40 ml. Which block was placed in which graduate?

the electric field is a “force field” around a charged object that illustrates the direction the electric force would push an imaginary 

battery with hi vtge high val resist in series

if the person is shown to have +90n, then ans is -10n.

if the person is shown to have -90n, then ans is +10n.