Two equallycharged particles are held 3.2x10 -3 m apart and thenreleased from re

Question

   Two equallycharged particles are held 3.2x10-3 m apart and thenreleased from rest. The initial acceleration of the 1st particle isobserved 7.0 m/s2 and that of the 2nd to be9.0m/s2. If the mass of the 1st particle is6.3x10-7 kg, what are a) the mass of the 2nd particleand b) the magnitude of the charge of each particle? thanks!    Two equallycharged particles are held 3.2x10-3 m apart and thenreleased from rest. The initial acceleration of the 1st particle isobserved 7.0 m/s2 and that of the 2nd to be9.0m/s2. If the mass of the 1st particle is6.3x10-7 kg, what are a) the mass of the 2nd particleand b) the magnitude of the charge of each particle? thanks! thanks!

Explanation / Answer

F = kq2/r2 =m1a1 =m2a2 m1 = m2a2/a1 =7 x6.3 x 10-7/9 =4.9 x 10-7kg B) q =sqrt {[7 x6.3 x 10-7x 3.2 x10-3]/9 x 109} = 1.25C

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