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December 3, 2016

Homework Help: Physics- Coulomb's Law

Posted by Kristal on Monday, April 29, 2013 at 10:08pm.

1) Particles of charge Q1 = +77 µC, Q2 = +44 µC, and Q3 = -80 µC are placed in a line. The center one (Q2) is 0.35 m from each of the others. Calculate the net force on Q1 and Q2 due to the other charges.

a) Force on Q1
Magnitude

b) Force on Q2
Magnitude

2) A charge of 3.9 nC and a charge of 5.9 nC are separated by 7 m. Find the equilibrium position for a -4.2 nC charge.

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