Homework 20 - lim (kl9356) Homework 20 Weathers (17104) 1...

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: lim (kl9356) Homework 20 Weathers (17104) 1 This print-out should have 11 questions. Multiple-choice questions may continue on the next column or page find all choices before answering. 001 10.0 points It is found that a 6 . 1 m segment of a long string contains 3 complete wavelengths and has a mass of 190 g. At one point it is vibrat- ing sinusoidally with a frequency of 55 Hz and a peak to valley displacement of 0 . 8 m. What power is being transmitted along the string? Answer in units of W. 002 (part 1 of 2) 10.0 points A point source emits sound waves with an average power output of 1 . 24 W. Find the intensity 3 . 15 m from the source. Answer in units of W / m 2 . 003 (part 2 of 2) 10.0 points Find the distance at which the sound reduces to a level of 64 dB. Answer in units of m. 004 (part 1 of 2) 10.0 points A skyrocket explodes 121 m above the ground. Three observers are spaced 77 m apart, with observer A directly under the point of the explosion....
View Full Document

This note was uploaded on 09/07/2010 for the course PHYS 1710 taught by Professor Weathers during the Fall '08 term at North Texas.

Page1 / 2

Homework 20 - lim (kl9356) Homework 20 Weathers (17104) 1...

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