PHYS 1070 Study Guide - Piano Tuning, Tuning Fork, String Vibration
21 Mar 2013
School
Department
Course
Professor
Document Summary
This question paper, rough work, and the answer sheet will be collected at the end of the examination. Place all sheets inside the question paper: to avoid errors (a) (b) (c) Do not mark your answer on the answer sheet until you are sure of your response. Minimize your need to erase answers on the answer sheet. If you do erase, do it neatly without smudging. Allow at least five minutes before the end of the exam to check your answers on the. Answer sheet: a sound wave travelling in the positive x direction has a wavelength in air of 0. 17m and a speed in air of 340 m/s. Which equation below describes this wave: the intensity level 15. 0 m from a speaker is 85 db. Assume that the speaker is a point source radiating in all directions: a 2. 0 m long piano string on a piano normally has a primary resonance at 440 hz, but is out of tune.
