# science

Two charged particles are 8.5cm apart .They moved and the force on each of them is found to be tripled .How far apart are they now

1. F = constant / d^2
3 F = constant /x^2

F = c/(8.5^2)
3 F = 3c/(8.5^2) = c/x^2
3 x^2 = 8.5^2
x = 8.5/sqrt(3)

posted by Damon
2. electric field strength follows the inverse square law

f d^2 = (3f) D^2

D^2 = d^2 / 3

D = 8.5 / √3

posted by Scott

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