ch24-p073 - 73. (a) Using d = 2 m, we find the potential at...

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

View Full Document Right Arrow Icon
Thus, the work done is approximately equal to W app = 2.30 × 10 28 J. (c) Now, combining the contribution to U system from part (b) and from the original pair of fixed charges 92 2 1 9 2 fixed 22 0 28 1 (2 )( 2 ) (8.99 10 N m C )(4)(1.60 10 C) 4 20.0 m (4.00 m) (2.00 m) 2.058 10 J . ee U πε −× × == + =− × , we obtain U system = W app + U fixed = 2.43 × 10 –29 J . 73. (a) Using d = 2 m, we find the potential at P : 2 1 9 10 00 0 2 2 (8.99 10 N m C )(1.6 10 C) 7.192 10 V 4 4 (2 ) 4 2.00 m
Background image of page 1
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 06/03/2011 for the course PHY 2049 taught by Professor Any during the Spring '08 term at University of Florida.

Ask a homework question - tutors are online