1/Point charges of 6.75 C and

3.25 C

are placed 0.350 m apart. (Assume the negative charge is located to the right of the positive charge. Include the sign of the value in your answers.)

(a)Where can a third charge be placed so that the net force on it is zero? m to the right of the

3.25 C

charge

(b)What if both charges are positive? m to the right of the 3.25 C charge

2/You have a container filled with 29 moles of neutral lithium. How much negative electric charge is contained in the electrons of all the lithium atoms in the container? C