1)Four charged particles are placed so that each particle is at the corner of a square. The sides of the square are 14 cm. The charge at the upper left corner is 3 × 10−6 C, the charge at the upper right corner is −7 × 10−6 C, the charge at the lower left corner is −3.4 × 10−6 C,and the charge at the lower right corner is −9.2 × 10−6 C.What is the magnitude of the net electric force on the +3 × 10−6 C charge in the upper left corner? The value of the Coulomb constant is 8.98755 × 109 N · m2/C2. Assume right and upward are positive. Answer in units of N.
1,2)What is the direction of this force (measured from the positive x-axis as an angle between −180◦ and 180◦ , with counterclockwise positive)? Answer in units of ◦
1,3) What is the magnitude of the net electric force on the −7 × 10−6 C charge in the upper right? Answer in units of N.
1,4) What is the direction of this force (measured from the positive x-axis, with counterclockwise positive)? Answer in units of ◦
1,5)What is the magnitude of the net electric force on the −9.2 × 10−6 C charge in the lower right? Answer in units of N.
1,6)What is the direction of this force (as an angle between −180◦ and 180◦ measured from the positive x-axis, with counterclockwise positive)? Answer in units of ◦.