Help on these two problems

A finite line of charge with linear charge density 1 = 3.50 X 10-6 C/m and length L = 0.720 m is located along the x-axis (from x = 0 to x = L). A point charge of q = -6.22 x 10" C is located at the point xo = 1.42 m. yo = 3.00 m. Find the electric field (magnitude and direction as measured from the +x-axis) at the point P, which is located + + + along the x-axis at Xp = 11.70 m. The Coulomb force constant is k = 1/ (4x/60) = 8.99 x 109 ( N.m?)/C2. E = N/C 0 = A straight rod of length L = 22.60 cm carries a uniform OP charge density A = 1.65 x 10- 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 x 109 N.m2/C2. Find the expression for the electric field along the y-axis E, at a point P. What is the magnitude of the electric field at yo = 35.00 cm? yo 4.358 x102 Ey = N/C + + + + + + ++++++ ++ + Incorrect