Three charges line vertically respectively q1= 20 q2 = -73 q3 = -49. q1 and q2 is separated by r1= 9 micrometer while q2 and q3 is separated by r2 = 30 nanometer. What is magnitude and direction of the total net force experience by q3?

B2

Charge Q1 = 2.4 μC is located at r1 = (3.4i − 2.0j + 5.5k) m. A second charge Q2 = 4.8 μC is located at r2 = (8.0i − 5.4j − 9.0k) m. a)What is the magnitude of the force of the second charge on the first charge in newtons?  b)The force of the second charge on the first charge can be written using unit vectors as follows: F = Fx i + Fy j + Fz k What is the value of Fx in newtons?  c)What is the value of Fy in newtons?

Questions 8-10 refer to the figure below. 91 а 92 а а 94 а 93 8. Four charges q1 = of the square have a length a. In terms of ke, Q, and a calculate the electric force acting on q1 due to q2, 93, and +Q, q2 = +Q, 93 = –Q, and q4 = -Q are in the corners of a square. The sides 4. A. ke (-0.65ây – 1.35g) C. kQ (0.65 + 1.35ŷ) В. К(-1.352 — 0.659) D. k (1.35â + 0.65ý) a2 a2 9. Four charges q1 = +Q, q2 = +Q, q3 = -Q, and q4 = -Q are in the corners of a square. The sides of the square have a length a. In terms of ke, Q, and a calculate the electric force acting on 2 due to q1, 93, and q4. A. k (0.65â – 1.35ŷ) C. E(-0.65£ + 1.35ŷ) D. g(-1,35 + 0.65ý) Q² B. k (1.35â – 0.65ý) 10. Four charges q1 = +Q, q2 = +Q, q3 = -Q, and q4 = -Q are in the corners of a square. The sides of the square have a length a. In terms of ke, Q, and a calculate the electric force acting on q3 due to q1, 92, and q4. A. k(-0.65â – 1.35g) B. k(-1.35â – 0.65ŷ) D. ke (1.35€ + 0.65ŷ) С. К (0.65 + 1.35)