4) Two charges, Q=8X10 C and Q - 4.5X10 C, surrounded by air, have their centers séparated by a distance of 5.4m? A) What is the magnitude of the electric field surrounding Q at the distance of 5.4m? B) What is the magnitude of the electrostatic force between these two charges?

Three charged particles of charges 18μC, -12 μC, and 24 μC are placed on the  X-axis at (6 cm, 0), (15 cm, 0), and (-6 cm, 0) respectively. Determine the magnitude and direction of the force acting on a -12 μC charge. Determine the magnitude and direction of the force acting on 18 μC  charge. Determine the magnitude and direction of the electric field on the y-axis at y = 30 cm.

There is a charge A of -2.3 uC at x = 1 cm and y = 4 cm. There is a charge B of -6.6 uC at x = 7 cm and y = -2 cm.  a) what is the magnitude of the force (in Newton's) of A on B? b) is the direction of the force on A towards B or away from B? c) what is the magnitude of the electric field at x = 0 cm and y = 0 cm?

4

1. Figure below shows an arrangement of four charged particles with 0 = 30.0°and the distance d= 2.00 cm. Particle 2 has charge q2 =+ 8.00x10 -19C; particle 3 and 4 have charges q3=q4=- 1.60 x 10 -19 C. y (a) What is distance D between the origin and particle 2 if the net electrostatic force on particle 1 due to the other particles is zero? (b) If particles 3 and 4 were moved closer to the x axis but maintained their symmetry about that axis, would the required value of D be greater than, less than, or same as part (a)? d D 2 1 4

In the figure, the particles have charges 91-92-590 nC and 93-94 93 nC, and distance a = 4.7 cm. What are the (a) x and (b) y components of the net electrostatic force on particle 3? 0 a (a) Number .093957 (b) Number -164835 Units N Units N