Be sure to review Examples 21.3 and 21.4 (Section 21.3) before attempting these problems. VP 21.4.1...

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Be sure to review Examples 21.3 and 21.4 (Section 21.3) before attempting these problems. VP 21.4.1 Part A Charge q = +3.60 nC is on the z-axis at z = 0 and charge q2 = -3.00 nC is on the z-axis at z = 6.00 cm. Find the z-component of total electric force exerted by 9 and on a third charge q = -3.00 nC on the z-axis at I= 4.00 cm. Express your answer in newtons. F Submit | A Previous Answers Request Answer * Incorrect; Try Again; 4 attempts remaining ? N Be sure to review Examples 21.3 and 21.4 (Section 21.3) before attempting these problems. VP 21.4.1 Part A Charge q = +3.60 nC is on the z-axis at z = 0 and charge q2 = -3.00 nC is on the z-axis at z = 6.00 cm. Find the z-component of total electric force exerted by 9 and on a third charge q = -3.00 nC on the z-axis at I= 4.00 cm. Express your answer in newtons. F Submit | A Previous Answers Request Answer * Incorrect; Try Again; 4 attempts remaining ? N