1. Assume that an observer calculates electric field and potential by measuring the force on a test charge. This observer moves along the path described by the green arrow. Finally, assume the system is in vacuum. (a) Plot and justify Q,E, V for a charged cylinder with charge Q, height h, radius r0, permittivity e = 36 where h >> r0. Let us assume V = 0 is defined at distance 11. Pay attention to where the 6/60 ratio appears in the plot. grjd Uniformly charged E cylinder Obsa'rvc-I' pull] (b) Suppose we release a test charge of +6; at 7'0. How fast is the charge moving when it gets to n