*3-8. Two electrically charged pith balls, each having a mass of 0.2 g, are suspended from light threads of equal length. Determine the resultant horizontal force of repulsion, F, acting on each ball if the measured distance between them is r = 200 mm. 150 mm + A + + ++ + + F 50 mm r = 200 mm- + + 150 mm + + + + + B

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
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3
r =
: 200 mm.
Prob. 3-7
*3-8. Two electrically charged pith balls, each having a mass
of 0.2 g, are suspended from light threads of equal length.
Determine the resultant horizontal force of repulsion, F,
acting on each ball if the measured distance between them is
150 mm
+
A
+ +
++
+
dy 3.50
D
+
50 mm
400 mm 250 mm
r = 200 mm-
сі
+
150 mm
+
+
+ +
+
B
Prob. 3-8
3-9. Determine the maximum weight of the flowerpot
that can be supported without exceeding a cable tension of
50 lb in either cable AB or AC.
Transcribed Image Text:3 r = : 200 mm. Prob. 3-7 *3-8. Two electrically charged pith balls, each having a mass of 0.2 g, are suspended from light threads of equal length. Determine the resultant horizontal force of repulsion, F, acting on each ball if the measured distance between them is 150 mm + A + + ++ + dy 3.50 D + 50 mm 400 mm 250 mm r = 200 mm- сі + 150 mm + + + + + B Prob. 3-8 3-9. Determine the maximum weight of the flowerpot that can be supported without exceeding a cable tension of 50 lb in either cable AB or AC.
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