A straight rod of length L = 23.80 cm carries a uniform charge density λ = 1.50×10−6 C/m. The rod is located along the y-axis from y1 = 0.00 to y2 = L. The Coulomb force constant is k = 8.99×109 N⋅m2/C2. Find the expression for the electric field along the y-axis Ey at a point P. What is the magnitude of the electric field at y0 = 45.00 cm? Ey = N/C