Chapter 2571*P25.64Take the illustration presented with the problem as an initial picture.No external horizontal forces act on the set of four balls, so its center ofmass stays fixed at the location of the center of the square. As thecharged balls 1 and 2 swing out and away from each other, balls 3 and 4move up with equal y-components of velocity. The maximum-kinetic-energy point is illustrated. System energy is conserved:kqaamvmvmvmvamvvamee2222222223121212122323=++++==v+24v3vv+1CMFIG. P25.64P25.65For the given charge distribution,Vx y zrr,,bgbg=+−122whererxRyz12=+++afand yz2222+.The surface on which=0is given byrre0−FHGIKJ=, or 2=.This gives:4442222xRyz x y z+++=++afwhich may be written in the form:xyzRxyzR28300430+++FHGIKJFHGIKJ=afaf.The general equation for a sphere of radius acentered at
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This note was uploaded on 12/14/2011 for the course PHY 203 taught by Professor Staff during the Fall '11 term at Indiana State University .