(Figure 1)Consider two positively charged particles, one of charge qo (particle 0) fixed at the origin, and another of charge q1 (particle 1) fixed on the y-axis at (0, d1, 0). What is the net force F on particle 0 due to particle 1? Express your answer (a vector) using any or all of k, 9o, q1, dı, i, j, and k.

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Two large rectangular sheets of charge of side L are parallel to each other and separated by a distance d (d << L). The left and right sheets have surface charge densities of 4.4 μC/m2 and -18.9 μC/m2, respectively. Points A, B, C, and D are outside the sheets near the center of the squares. Take +x to be to the right. 1. Assume point A is at a distance 0.1d from the left sheet. Find the value of the electric field, in newtons per coulomb with its sign, at point A.  2. Assume point B is at a distance 0.25d from the left sheet. Find the value of the electric field, in newtons per coulomb with its sign, at point B.  3. Assume point C is at a distance 0.4d from the right sheet. Find the value of the electric field, in newtons per coulomb with its sign, at point C.  4. Assume point D is at a distance 0.1d from the right sheet. Find the value of the electric field, in newtons per coulomb with its sign, at point D.

A positive charge q is fixed at point (3,4) and a negative charge −q is fixed at point (3,0). Determine the net electric force F→net acting on a negative test charge −Q at the origin (0,0) in terms of the given quantities and physical constants, including the permittivity of free space ε0. Express the force using ij unit vector notation. Enter precise fractions rather than entering their approximate numerical values.