Part A In noisy factory environments, it' s possible to use a loudspeaker to cancel persistent low-frequency machine noise at the position of one worker. The details of practical systems are complex, but we can present a simple example that gives you the idea. Suppose a machine 5.0 m away from a worker emits a persistent 85 Hz hum. This hum can be canceled by installing a loudspeaker between the worker and the machine that exactly duplicates the machine's hum. How far from the worker should the speaker be placed? Assume a sound speed of 340 m/s. Express your answer with the appropriate units. HÁ Value Units Submit Request Answer

College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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Part A
In noisy factory environments, it' s possible to use
a loudspeaker to cancel persistent low-frequency
machine noise at the position of one worker. The
details of practical systems are complex, but we
can present a simple example that gives you the
idea. Suppose a machine 5.0 m away from a
worker emits a persistent 85 Hz hum. This hum
can be canceled by installing a loudspeaker
between the worker and the machine that exactly
duplicates the machine's hum.
How far from the worker should the speaker be placed? Assume a sound speed of 340 m/s.
Express your answer with the appropriate units.
HÀ
Value
= 1
Units
Submit
Request Answer
Provide Feedback
R Pearson
Transcribed Image Text:Part A In noisy factory environments, it' s possible to use a loudspeaker to cancel persistent low-frequency machine noise at the position of one worker. The details of practical systems are complex, but we can present a simple example that gives you the idea. Suppose a machine 5.0 m away from a worker emits a persistent 85 Hz hum. This hum can be canceled by installing a loudspeaker between the worker and the machine that exactly duplicates the machine's hum. How far from the worker should the speaker be placed? Assume a sound speed of 340 m/s. Express your answer with the appropriate units. HÀ Value = 1 Units Submit Request Answer Provide Feedback R Pearson
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