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(Question 1 of 3) Three-point charges, +5.7 µC, +1.3 µC, and −3.2 µC, lie along the...

(Question 1 of 3) Three-point charges, +5.7 µC, +1.3 µC, and −3.2 µC, lie along the x-axis at 0 cm, 1.6 cm, and 5.4 cm, respectively. What is the force exerted on q1 by the other two charges? (To the right is positive.) The Coulomb constant is 8.99 × 109 N · m2 /C 2 . Answer in units of N.

(Question 2 of 3)What is the force exerted on q2 by the other two charges? (To the right is positive.) Answer in units of N.

(Question 3 of 3)What is the force exerted on q3 by the other two charges? (To the right is positive.) Answer in units of N.

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Answer #1

What is the force exerted on q1 by the other two charges?

F = - 9e9 * 5.7e-6 * 1.3e-6 / 0.0162 + 9e9 * 5.7e-6 * 3.2e-6 / 0.0542

F = - 260.5 + 56.3

F = - 204 N ( net force is to the left)

_________________

What is the force exerted on q2 by the other two charges

F =  9e9 * 5.7e-6 * 1.3e-6 / 0.0162 + 9e9 * 3.2e-6 * 1.3e-6 / 0.0382

F = 260.5 + 25.9

F = 286.4 N ( to the right)

___________________

What is the force exerted on q3 by the other two charges?

F = - 9e9 * 5.7e-6 * 3.2e-6 / 0.0542 - 9e9 * 3.2e-6 * 1.3e-6 / 0.0382

F = - 56.3 - 25.9

F = - 82.2 N ( to the left)

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