Coulomb's Law (Electric Force) Video Lessons

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Problem: Three charges are located as shown in the figure, with values q1 = 4.9x10-16 C, q2 = -1.5x10-16 C, q3 = 6.75x10-16 C. The charges are separated by d1 = 3.9x10-6 m and d2 = 3.9x10-6 m.a. What is the force of q2 on q1 in the x direction, Fx? Give your answer in newtons, and recall k = 8.988 × 109 N m2/C2.b. What is the force of q3 on q1 in the y direction, Fy? Give your answer in newtons.

FREE Expert Solution

We'll determine the forces from Coulomb's law given by:

F=kq1q2r2

a.

The force of q2 on q1 in the x-direction is:

Fx=kq1q2d12

k = 8.988 × 109 N m2/C2

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Problem Details

Three charges are located as shown in the figure, with values q1 = 4.9x10-16 C, q2 = -1.5x10-16 C, q3 = 6.75x10-16 C. The charges are separated by d1 = 3.9x10-6 m and d2 = 3.9x10-6 m.


a. What is the force of q2 on q1 in the x direction, Fx? Give your answer in newtons, and recall k = 8.988 × 109 N m2/C2.

b. What is the force of q3 on q1 in the y direction, Fy? Give your answer in newtons.

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Based on our data, we think this problem is relevant for Professor Vallone's class at BROOKLYN CUNY.