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What beat frequencies will be present: (a) If the musical notes A and C are played together (frequencies of 220 and 264 Hz)? (b) If D and F are played together (frequencies of 297 and 352 Hz)? (c) If all four are played together?

$\Delta _ { f } = 0.7 \mathrm { Hz }$

Physics 101 Mechanics

Chapter 17

Physics of Hearing

Sound and Hearing

Rutgers, The State University of New Jersey

University of Michigan - Ann Arbor

Hope College

University of Sheffield

Lectures

04:16

In mathematics, a proof is…

04:48

In mathematics, algebra is…

02:33

What beat frequencies are …

01:18

What is the beat frequency…

01:38

(I) What is the beat frequ…

01:36

00:57

Three adjacent keys on a p…

00:19

What beat frequency will o…

02:44

(II) You have three tuning…

01:01

04:07

(II) How many beats will b…

Two violin strings are tun…

01:11

Roughly, what would be the…

00:48

Predict/Explain (a) Is the…

04:05

Two out-of-tune flutes pla…

01:48

Two nearby trumpets are so…

03:04

00:59

Consider three notes: 220 …

00:44

A piano tuner hears a beat…

02:18

A cello string has a funda…

01:28

Musical notes $C$ and A so…

08:45

While attempting to tune t…

in this volume for a you know that these two frequencies are being produced together. Anyone find out what the beat frequency will be? The beat frequency is simply the difference between them. So that's 2 64 minus 2 20 which is 44 hurts in the second case. Again, it's simply the difference between them. 3 52 minus 27 is 55 hearts, so we have beat frequent. It's got this morning to despair on despair now, for Part C is responding in part. See, all four frequencies are being played means not only will there be these two pairs, but these two frequencies will produce. A big note on these two frequencies will produce a beat note. Let's make it green. So the green beat note frequency will be to 97 minus 2 64 which is 33 hearts and the blue frequency. Responding to 3 52 minus 2 20 will be 132 words. These will be the four beat frequencies one toe 34 When are four of them are played? Seamless that

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