problem21_p102

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

• Homework Help
• PresidentHackerCaribou10582
• 1

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

21.102: a) σ R R π Q ) ( 2 2 2 2 - = = b) Recall the electric field of a disk, Eq. (21.11): [ ] So, . 1 ) ( 1 1 2 2 0 + - = x R ε σ E [ ] [ ] ( 29 ( 29 . ˆ 1 ) ( 1 1 ) ( 1 2 ) ( ˆ 1 ) ( 1 1 1 ) ( 1 1 2 ) ( 2 1 2 2 0 2 1 2 2 0 i i E x x x R x R ε σ x E x x x R x R ε σ x + - + × - = + - - + - = c) Note that + - + = + - ... 2 ) ( 1 ) ) ( 1 ( 1 ) ( 1 2 1 1 2 1 2 1 1 2 1 R x R x R x R x x R , ˆ 1 1 2 ˆ 2 ) ( 2 2 1 0 2 1 0 i i x x R R ε σ x x R x R x ε σ x E - = - = and sufficiently close means that
This is the end of the preview. Sign up to access the rest of the document.
• '
• NoProfessor
• SEPTA Regional Rail, R1 R2

{[ snackBarMessage ]}

### What students are saying

• As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

Kiran Temple University Fox School of Business ‘17, Course Hero Intern

• I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

Dana University of Pennsylvania ‘17, Course Hero Intern

• The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

Jill Tulane University ‘16, Course Hero Intern