please help me solve question 10 and 11 thanks

6.) Focus on the initial stage of accelerating the electrons. Can you relate the final speed of the electrons to the accelerating voltage AV? The following questions help you derive this relation using conservation of energy AK + AU = 0. (a) How is the change in the electron's potential energy AU related to the accelerating voltage AV? [Note: remember the charge of the electron is -e with e being a positive number!] (b) Assume the electron starts from rest and fill in the details to get a formula for the final speed of the electron v in terms of its mass, m, charge e and accelerating voltage AV. Save this formula for later. 7.) Now focus on the motion of the electron in the magnetic field. Because we know a charged particle in a magnetic field B perpendicular to its motion travels in a circular path, what you can you say about its acceleration? 8.) Write an expression for the magnitude of the magnetic force acting on the electron. 9.) Use Newton's Second law and your results from the previous part to relate the radius of the electron's circular path to its mass m, charge e, speed v and magnetic field B. 10.) Quantities which are directly measurable in this lab are the accelerating voltage AV, radius of the electron's path r, and the magnetic field B. Combine your results from steps 6 and 9 to write a formula which relates the radius of the electron's path r to other measurable quantities, and the ratio e/m. You should be able to write this equation in the form (1) B where C is a constant. Determine an expression for the constant C in terms of mea- surcable quantities and the charge to mass ratio e/m. 11.) In this lab you can vary B and measure r. Explain how you could plot your data in such a way that you could determine e/m from the slope of a graph