Hwk10B
1 Page

Hwk10B

Course: PHYS 153, Winter 2008

School: UBC

Word Count: 310

Rating:

Document Preview

PHYS 153 Homework 10B Problem 1 A railroad train is traveling at 25.0 m/s in still air. The frequency of the note emitted by the locomotive whistle is 400 Hz. What is the wavelength of the sound wave (a) in front of the locomotive and (b) behind the locomotive? What is the frequency of the sound heard by a stationary listener (c) in front of the locomotive and (d) behind the locomotive? Problem 2 Two identical...

Unformatted Document Excerpt
Coursehero >> Canada >> UBC >> PHYS 153

Course Hero has millions of student submitted documents similar to the one
below including study guides, practice problems, reference materials, practice exams, textbook help and tutor support.

Course Hero has millions of student submitted documents similar to the one below including study guides, practice problems, reference materials, practice exams, textbook help and tutor support.

153 Homework PHYS 10B Problem 1 A railroad train is traveling at 25.0 m/s in still air. The frequency of the note emitted by the locomotive whistle is 400 Hz. What is the wavelength of the sound wave (a) in front of the locomotive and (b) behind the locomotive? What is the frequency of the sound heard by a stationary listener (c) in front of the locomotive and (d) behind the locomotive? Problem 2 Two identical taut strings under the same tension F produce a note of the same fundamental frequency f0 . The tension in one of them is now increased by a very small amount F. (a) if they are played together in their fundamental, show that the frequency of the beat produced is fbeat = f0 (F/2F ). (b) Two identical violin strings, when in tune and stretched with the same tension, have a fundamental frequency of 440.0 Hz. One of the strings is retuned by increasing its tension. When this is 1.5 done, beats per second are heard when both strings are plucked simultaneously at their centers. By what percentage was the string tension changed? Problem 3 A manufacturing firm has hired your company, Acoustical Consulting, to help with a problem. Their employees are complaining about the annoying hum from a piece of machinery. Using a frequency meter, you quickly determine that the machine emits a rather loud sound at 1200 Hz . After investigating , you tell the owner that you cannot solve the problem entirely, but you can at least improve the situation by eliminating reflections of this sound from the walls. You propose to do this by installing mesh screens in front of the walls A portion of the sound will reflect from the mesh; the rest will pass through the mesh and reflect from the wall. How far should the mesh be placed in front of the wall for this scheme to work? 1-1

Find millions of documents on Course Hero - Study Guides, Lecture Notes, Reference Materials, Practice Exams and more. Course Hero has millions of course specific materials providing students with the best way to expand their education.

Below is a small sample set of documents:

UBC - PHYS - 153
PHYS 153Homework 8AProblem 1An oscillator with a mass of 500 g and a period of 0.50 s has an amplitude that decreases by 2.0% during each complete oscillation. (a) If the initial amplitude is 10 cm, what will be the amplitude after 25 oscillatio
University of Texas - MKT - 320
Chapter 12 Advanced Level Quiz 1. When planning physical distribution, the marketing manager should: A. set the customer service level so that every customer can get the product exactly when he wants it. B. minimize the cost of distribution for a giv
University of Texas - MKT - 320
Chapter 13 Advanced Level Quiz 1. "Retailing" refers to: A. the sale of products to final consumers. B. the sale of both business and consumer products. C. the sale of consumer products to wholesalers, retailers, or final consumers. D. the performanc
University of Texas - MKT - 320
Chapter 18 Advanced Level Quiz 1. The text says "markups": A. should always be stated as a percentage of cost. B. are a percentage of selling price-unless otherwise stated. C. are never stated as a percentage of cost. D. should never be stated in dol
University of Texas - MKT - 320
Chapter 22 Advanced Level Quiz 1. When evaluating the effectiveness of the macro-marketing systems of different countries A. the evaluation should be limited to basic economic objectives which are common across countries. B. the best approach is to s
University of Texas - MKT - 320
Marketing Book Notes-Chapter 1 Marketing's Value to Consumers, Firms and Society Marketing-What's it all about? Marketing is more than selling or advertising. Production is actually making goods or performing services. Marketing provi
University of Texas - ARC - 308
Necessity Main Idea: how humans, plants animals adapt to different temperatures and weather situations - Organisms vary their temperature by muscular activity o Shivering in humans Pg4 o Lizards do push-ups on a sunny day or lie still to cool down Pg
University of Texas - FR - 507
Franais Interactif Chapitre 8 (Study Guide for Exam #1) Liste de Vocabulaire (pgs. 4-6) Review the vocabulary on these pages (know the gender, spelling, accents, meaning) Be able to use the vocabulary to not only answer questions, but to also in
University of Texas - FR - 507
Franais Interactif Chapitre 9 - Mdias et communications (Study Guide for Exam #2) Liste de Vocabulaire (pgs. 52-54) Review the vocabulary associated with the theme (know the gender, spelling, accents, meaning) Be able to use the vocabulary to
University of Texas - FR - 507
Franais Interactif Chapitre 10 Mode, forme et sant (Study Guide for Exam #3) Liste de Vocabulaire (pgs. 94-97)! REVIEW THE VOCABULARY (know the gender, spelling [some are singular in French/plural in English], accents, meaning)Exercises 1 through
University of Texas - FR - 507
Franais Interactif Chapitre 11 Les tudes (Study Guide for Exam #3) Liste de Vocabulaire (pgs. 144-146)!past participle: suivi*imperfect stem is taken from the nous form: je/tu suivais, il/elle/on suivait, nous suivions.past participle: vcu*im
University of Texas - FR - 507
Franais Interactif Chapitre 12 La vie professionnelle (Study Guide for Exam #5) Liste de Vocabulaire (pgs. 194-196)! REVIEW THE VOCABULARY (know the gender, spelling, and accents; know how to describe professions using vocabulary/constructions lear
University of Texas - ARC - 308
Edgartown: -Traditional neighborhood -Every house faces the front of the main street. And all decorations are facing the street. -"Many of the striking variations in any part of the town seem to have been appreciated by the neighbors and echoed in a burst
Indiana - CHEM-C - 317
CHEMISTRY C317:EQUILIBRIA AND ELECTROCHEMISTRY Spring, 2008 Practice Examination 21. Suppose that you wish to attempt the separation of Cu2+ from SbO+ by controlled-potential deposition of copper metal onto a platinum cathode. Assume that the ori
Northwestern - PHIL - 101
{\rtf1\ansi\ansicpg1252\cocoartf949\cocoasubrtf430{\fonttbl\f0\fswiss\fcharset0 Helvetica;}{\colortbl;\red255\green255\blue255;}\margl1440\margr1440\vieww9000\viewh8400\viewkind0\pard\tx720\tx1440\tx2160\tx2880\tx3600\tx4320\tx5040\tx5760\tx6480\
Northwestern - PHIL - 101
{\rtf1\ansi\ansicpg1252\cocoartf949\cocoasubrtf430{\fonttbl\f0\fswiss\fcharset0 Helvetica;}{\colortbl;\red255\green255\blue255;}\margl1440\margr1440\vieww9000\viewh8400\viewkind0\pard\tx720\tx1440\tx2160\tx2880\tx3600\tx4320\tx5040\tx5760\tx6480\
Northwestern - PHIL - 101
{\rtf1\ansi\ansicpg1252\cocoartf949\cocoasubrtf430{\fonttbl\f0\fswiss\fcharset0 Helvetica;}{\colortbl;\red255\green255\blue255;}\margl1440\margr1440\vieww9000\viewh8400\viewkind0\pard\tx720\tx1440\tx2160\tx2880\tx3600\tx4320\tx5040\tx5760\tx6480\
Northwestern - PHIL - 101
{\rtf1\ansi\ansicpg1252\cocoartf949\cocoasubrtf430{\fonttbl\f0\fswiss\fcharset0 Helvetica;}{\colortbl;\red255\green255\blue255;}\margl1440\margr1440\vieww9000\viewh8400\viewkind0\pard\tx720\tx1440\tx2160\tx2880\tx3600\tx4320\tx5040\tx5760\tx6480\
Northwestern - PHIL - 101
{\rtf1\ansi\ansicpg1252\cocoartf949\cocoasubrtf430{\fonttbl\f0\fswiss\fcharset0 Helvetica;}{\colortbl;\red255\green255\blue255;}\margl1440\margr1440\vieww9000\viewh8400\viewkind0\pard\tx720\tx1440\tx2160\tx2880\tx3600\tx4320\tx5040\tx5760\tx6480\
Northwestern - PHIL - 101
{\rtf1\ansi\ansicpg1252\cocoartf949\cocoasubrtf430{\fonttbl\f0\fswiss\fcharset0 Helvetica;}{\colortbl;\red255\green255\blue255;}\margl1440\margr1440\vieww9000\viewh8400\viewkind0\pard\tx720\tx1440\tx2160\tx2880\tx3600\tx4320\tx5040\tx5760\tx6480\
Northwestern - PHIL - 101
{\rtf1\ansi\ansicpg1252\cocoartf949\cocoasubrtf430{\fonttbl\f0\fswiss\fcharset0 Helvetica;}{\colortbl;\red255\green255\blue255;}\margl1440\margr1440\vieww9000\viewh8400\viewkind0\pard\tx720\tx1440\tx2160\tx2880\tx3600\tx4320\tx5040\tx5760\tx6480\
Northwestern - PHIL - 101
{\rtf1\ansi\ansicpg1252\cocoartf949\cocoasubrtf430{\fonttbl\f0\fswiss\fcharset0 Helvetica;}{\colortbl;\red255\green255\blue255;}\margl1440\margr1440\vieww9000\viewh8400\viewkind0\pard\tx720\tx1440\tx2160\tx2880\tx3600\tx4320\tx5040\tx5760\tx6480\
University of Texas - ACC - 02370
Ch. 9 I. Developing a budget is a critical step in planning any economic activity II. Purposes of budgeting systems A. A Budget is a detailed plan, expressed in quantitative terms, that specifies how resources will be acquired and used during a speci
University of Texas - MAN - Man 336
Chapter 2: Foundations of individual behavior I. Ability A. Ability- refers to an individual's capacity to perform the various tasks in a job B. It is a current assessment of what one can do C. Managers are less interested in whether people differ in
University of Texas - MAN - Man 336
Chapter one-man336 I. Int ro to organizational behavior a. Managers report their most frequent or t roublesome problems are people problems b. Wages and fringe benefits are not the main reasons people like their jobs or stsay with an employer far mor
University of Texas - MAN - Man 336
I. A. 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. a. b. c. d. e. f. II. A. B. 1. 2. 3. C. 1. 2. a. b. c. d. e. 3.Job satisfaction (cont.) The effects of satisfied and dissatisfied employees on the workplace The relationship between job satisfaction and job perf
University of Texas - MAN - Man 336
Chapter 13 I. A definition of conflict A. Conflict must be perceived by the parties to it: if no one is aware of a conflict, it is generally agreed that no conflict exists B. Two other commonalities the definitions share are opposition or incompatibi
University of Texas - MAN - Man 336
Chapter 8 I. Defining and classifying groups A. A group is defined as two or more individuals, interacting and interdependent, who have come together to achieve particular objectives B. A formal group with designated work assignments establishing tas
University of Texas - LEB - LEB 323
Torts Corresponding Reading Assignment (It will take 2 days to cover this material): Text: 218 244; 248 top of 249; 250 - 251 1. Introduction a. "Tort": wrong b. Purpose of tort law: provide remedies for those who have suffered a loss or injury bec
University of Texas - LEB - LEB 323
Torts Corresponding Reading Assignment (It will take 2 days to cover this material): Text: 218 244; 248 top of 249; 250 - 251 1. Introduction a. The major purposes of criminal law were to define wrongs against the state and to permit the state to p
University of Texas - LEB - LEB 323
Contracts: Nature and Classification Text: pages 342-355 1. The various branches of law that directly control all the legal aspects of business tractactions are composed primarily of substantive legal rules 2. Definition of a Contract- a special sort