B)
by applying newtons 2nd law
F =m*a
a =F/m
= e*E/(m)--------(1 )
Use E from part A in (1) put values and get answer

9:53イ Correct Problem 21.50 Tap image to z0om Part A Find the electic ele E imagnitude...
9:531 Correct Problem 21.50 the center th Hine Remember sinl-6)so the two halves of ANSWER 0E--が Correct Part D Determine the 0pC Express your answer using twe significan igures ANSWER magnitude and directionj fan uaced at 00et P. Incorrect; Try Again: 4 attempts remaining
Problem 21.50 A thin glass rod is a semicircle of radius R, see the figure Tap image to zoom А charge is nonuniformly distributed along the rod with a linear charge density given by λ-Aa sin θ , where λο is a positive constant. Point P is at the center of the semicircle. Part A Find the electric field E (magnitude and direction) at point P [Hint Remember sin(-0)--sin θ , so the two halves of the rod are oppostely...