HP Spectre 360 Pen Dem... X Configure X W Assignment 04 a https://www. ebassign
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HP Spectre 360 Pen Dem... X Configure X W Assignment 04 a https://www. ebassign net 3405 517 Q2 t/web/Student/Assignment-Responses/submit?dep Search (b) Can the equilibrium be stable? O Y if the third bead has a positive charge. es, O Yes, if the third bead has a negative charge. O No Need Help? Read It i Watch It 0 points SerPSE9 23.P015.MI.FB My Notes Ask Your Teacher Three charged particles are located at the corners of an equilateral triangle as shown in the figure below (let q 2.20 HC, and L 0.550 m). Calculate the total electric force on the 7 00-HC charge. magnitude o counterclockwise from the +x axis) direction 7.00 60.0 4.00 PwC Need Help? Read It Master It 8:56 PM Ask me anything 2/9/2016Explanation / Answer
Force due to q = k*2.2*10-9*7*10-9/L2 = 9*109*2.2*10-9*7*10-9/0.552= 4.58 * 10-7N at 60 degree with x
Force due to -4uC = k*4*10-9*7*10-9/L2 = 9*109*4*10-9*7*10-9/0.552= 8.33 * 10-7N at -60 degree with x
Lets add x components of both
Fx = 4.58 * 10-7N cos 60 +8.33 * 10-7N cos(-60) = 6.46 * 10-7N
Fy= 4.58 * 10-7N sin 60 +8.33 * 10-7N sin(-60) = -3.25 * 10-7N
Net force = sq root of [ Fx2 +Fy2]= 7.23 * 10-7N........answer of first part
tan theta =Fy/Fx= -3.25 * 10-7/ 6.46 * 10-7N = -0.503
theta = -26.7 degree counterclockwse from x axis.......answer of second part
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