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Problem 7: Two positively-charged balls with equal amounts of charge and mass m = 4.5 g are suspended from the ceiling by a thread of length L = 1.2 m as shown in the drawing. 0 0\ L m, q m, q

Problem 7: Two positively-charged balls with equal amounts of charge and mass m = 4.5 g are suspended from the ceiling by a thread of length L = 1.2 m as shown in the drawing. 0 0\ L m, q m, q

College Physics
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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can you please solve (c)? 

Problem 7: Two positively-charged balls with equal amounts of charge and mass m = 4.5 g are suspended from the ceiling by a thread of length L = 1.2 m as shown in the drawing. L/00 m, q m, q Part (a) Consider the forces acting on the ball shown on the right in the drawing. Which one of the following choices best represents the free-body diagram for this situation? SchematicChoice : Part (b) Enter an expression for the sum of the forces in the horizontal direction acting on the ball on the right in the drawing in terms of the magnitude of the tension T, the magnitude of the electric force FE, and the angle 0. Expression : EFx = Select from the variables below to write your expression. Note that all variables may not be required. cos(a), cos(o), cos(0), sin(a), sin(o), sin(0), B, y, 0, d, FE, g, m, n, T Part (c) Enter an expression for the sum of the forces in the vertical direction acting on the ball on the right in the drawing. Expression : EFy = Select from the variables below to write your expression. Note that all variables may not be required. cos(a), cos(4), cos(0), sin(a), sin(4), sin(0), B, y, 0, d, FE, g, m, n, T Part (d) If each thread makes an angle 0 = 11° with respect to the vertical direction, what is the magnitude of the charge q on each ball in uC? Numeric : A numeric value is expected and not an expression. q =
Transcribed Image Text:Problem 7: Two positively-charged balls with equal amounts of charge and mass m = 4.5 g are suspended from the ceiling by a thread of length L = 1.2 m as shown in the drawing. L/00 m, q m, q Part (a) Consider the forces acting on the ball shown on the right in the drawing. Which one of the following choices best represents the free-body diagram for this situation? SchematicChoice : Part (b) Enter an expression for the sum of the forces in the horizontal direction acting on the ball on the right in the drawing in terms of the magnitude of the tension T, the magnitude of the electric force FE, and the angle 0. Expression : EFx = Select from the variables below to write your expression. Note that all variables may not be required. cos(a), cos(o), cos(0), sin(a), sin(o), sin(0), B, y, 0, d, FE, g, m, n, T Part (c) Enter an expression for the sum of the forces in the vertical direction acting on the ball on the right in the drawing. Expression : EFy = Select from the variables below to write your expression. Note that all variables may not be required. cos(a), cos(4), cos(0), sin(a), sin(4), sin(0), B, y, 0, d, FE, g, m, n, T Part (d) If each thread makes an angle 0 = 11° with respect to the vertical direction, what is the magnitude of the charge q on each ball in uC? Numeric : A numeric value is expected and not an expression. q =
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