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A point charge q1 = 4.00 nC is located on the x-axis at x = 2.00 m, and a second point charge q2 = −6.00 nC is on the y-axis at y = 1.00 m. What is the total electric flux due to these two point charges through a spherical surface centered at the origin and with radius (a) 0.500 m, (b) 1.50 m, (c) 2.50 m?
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