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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 charged ANSWER E-I ScoR Correct Part B Determine the acceleration (magnitude and direction) of an electronplaced at pont P, assuming R 1.3cm and λ 2.0 C/m Express your answer using two significant figures ANSWER a-3.35-101 Incorrect; Try Again; 4 attempts remaining
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