This preview shows pages 1–2. Sign up to view the full content.
This preview has intentionally blurred sections. Sign up to view the full version.
View Full Document
Unformatted text preview: δ = p 8 . 3 2 + (2 . 26 + 2 . 11) 2p 8 . 3 2 + (2 . 262 . 11) 2 (7). Correct answer is A The period of time between intensity maxima is just 1/(beat frequency). Here the beat frequency is just the diﬀerence of the two frequencies, i.e. 38/min = 38/60 Hz (8). Correct answer is D The tension is just F= μv 2 , where μ is the mass per unit length. This can determined from the density by multiplying with the cross sectional area; hence F = 2700 * π * (2 . 3 × 103 ) 2 * (30) 2 ’ 40 N 2 (9). Correct answer is D Energy transport is always proportional to the square of the amplitude (10). Correct answer is D The fact that sound intensity goes down from he source is a direct consequence of conservation of energy...
View
Full
Document
This note was uploaded on 12/13/2011 for the course PHYS 2C PHYS 2C taught by Professor Groisman during the Spring '11 term at UCSD.
 Spring '11
 groisman

Click to edit the document details