The ATC notices that airplanes NJ267 and DL267 are flying at the same speed on intersecting courses. What is the problem and what would you tell the pilots in order to solve the problem

Charge is distributed along the entire x-axis with uniform density λ. how much work does the electric field of this charge distribution do on an electron that moves along the y-axis from y = a to y = b? (use the following as necessary: a, b, ε0, λ, and q for the charge on an electron.)