Please Answer All Questions 1 (267.85 KiB) Viewed 36 times
Please Answer All Questions 2 (263.17 KiB) Viewed 36 times
A thin arc of charge consists of a quarter circle of radius R with a uniform charge per length of A. What is the amount of charge in the red piece of arc, over the small angle de shown? +y 2XRd0 π 2Xd0 π XRde Xd0 R Ο λάθ 2Xd0 RT +x 0 de Ä
A small pith ball has a charge of +3Q and mass M sits in an electric field directed as shown. Let T be the tension of the string and assume the ball is in equilibrium. Which statement is true? +y +x OT-Mg + E, = 0 O T sin 0 - 3Q E cos = 0 O T sin 0 + 3Q E。 = 0 A Eo O None of the other answers are correct. OT sin - E, cos = 0 O T sin 0 + E, cos = 0 O T sin 0 + 3Q E, cos = 0
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