Quiz#1-soln - Quiz #1 Name ______________...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: Quiz #1 Name ______________ PS#________________ PHYS 1302 Summer 6W2 2009 Lau ------------------------------------------------------------------------------------------------------------ Constants k=1/(4 πε )= 8.99 x 10 9 in SI units. ------------------------------------------------------------------------------------------------------------------------------------------------------------------ 1. Find the electrostatic force between two point charges, of 140 μ C each, separated by 6 m. Solution 6 2 9 1 2 2 2 (140 10 ) 8.99 10 4.9 5 (6 ) q q C F k N N r m- × = = × = ≈ A. 1 N B. 5 N C. 10 N D. 20 N E. 30 N ------------------------------------------------------------------------------------------------------------------------------------------------------------------ 2. A charge q 2 is four times as large as another charge q 1 , and the charges repel each other with a force of 1440 N when separated by 10 km. Find the magnitude of q 1 . Solution 2 1 2 1 2 2 2 2 9 1 4( ) /(4 ) (1440 )(10,000 ) /(4 8.99 10 ) 2.0 q q q F k k r r q Fr k N m C = = = = × × = A. 1 C B. 2 C C. 3 C D. 4 C E. 5 C ------------------------------------------------------------------------------------------------------------------------------------------------------------------...
View Full Document

This note was uploaded on 04/10/2010 for the course PHYS 1102 taught by Professor Lau during the Spring '10 term at Houston Baptist.

Page1 / 2

Quiz#1-soln - Quiz #1 Name ______________...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online