- #1

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## Homework Statement

Calculate the magnitude and direction of the electric field at point Z in

Figure 13, due to the charged spheres at points X and Y.

## Homework Equations

E = kq1/r^2

## The Attempt at a Solution

Determine each vector component:

Ex = (9.0x10^9 Nm^2/C^2)(50.0 x 10^-6 C) / (0.75m)^2

Ex = 8.0 x 10^5 N/C

Ey = (9.0x10^9 Nm^2/C^2)(10.0 x 10^-6 C) / (0.30m)^2

Ey = 1.0 x 10^6 N/C

Determine sum of vectors:

Ez = ∑E = Ex + Ey = 8.0 x 10^5 N/C + 10 x 10^5 N/C = 1.8 x 10^6 N/C

The answer should be 2.0 x 10^5 N/C