The V-s Graph For A ps://edugen wileyplus com/edugen/iti/main uni Return to Blac

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The V-s Graph For A ps://edugen wileyplus com/edugen/iti/main uni Return to Blackboard Halliday, Fundamentals of Physics, 10e Help i system Announcements Unread PRINTER VERSION Chapter 21, Problem oo6 Two equally charged particles, held 4,7 x 10.3 m apart, are released from rest. The first particle is observed to be 6.7 m/s2 and that of the second to be 8.5 m/s2. tial acceleration of the and (b) the of the charge of each partice? If the mass of the first particle is 8,7 x 10 7 kg, what are (a) the mass of the second particle (a) Number (b) Number Question Attempts: o of 2 used SAVE FOR LATER SUBMITANSwER All rights reserved. opyright 2000-2017 by John Wiley & Sons, Inc. or rela

Explanation / Answer

the charge of particle 1 = q, mass = m
charge of particel 2 = q, mass = M

distance between the particles, d = 4.7 mm
Coulomb repulsion, F = kq^2/d^2
now, initial acceleration = a = 6.7 m/s/s (particle 1)
F = ma = kq^2/d^2
now, initial acceleration = A = 8.5 m/s/s (particle 2)
F = MA = kq^2/d^2

m = 8.7*10^-7 kg
a)
   MA = ma
   M = ma/A = 8.7*10^-7 * 6.7/8.5 = 6.857*10^-7 kg
b) F = ma = kq^2/r^2
8.7*10^-7 * 6.7 = 8.98*10^9 * q^2 / (4.7*10^-3)^2
q = 1.1974*10^-10 C

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