problem23_84

University Physics with Modern Physics with Mastering Physics (11th Edition)

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
23.84: a) We have : So ). 3 ( ) , , ( 2 2 2 z y x A z y x V + - = k j i k j i E ˆ 2 ˆ 6 ˆ 2 ˆ ˆ ˆ Az Ay Ax z V y V x V - + - = - - - = b) A charge is moved in along the z -axis. So the work done is given by: = + = - = = 0 0 2 0 2 0 0 0 ) ( ) 2 ( ˆ z z qz W A z Aq dz Az q dz q W k E . m V 640 m) 250 . 0 )( C 10 5 . 1 ( J 10 00 . 6 2 2 6 5 = × × = - - A c) . ˆ m V 320 - ˆ m) 250 . 0 ( ) m V 640 ( 2 ) 250 . 0 , 0 , 0 ( 2 k k E = - = d) In every plane parallel to the y z x , plane - is constant, so: , ) , , ( 2 2 2 2 2 R A C V z x C Az Ax z y x V + = + - + = which is the equation for a circle since
Background image of page 1
This is the end of the preview. Sign up to access the rest of the document.

This document was uploaded on 02/06/2008.

Ask a homework question - tutors are online