Homework Answers
Answer :
Question (4) Answer : Higher than the real one and getting gradually higher.
Since : Pitch is related to the frequency of sound.
This comes as a result of Doppler effect : The Doppler effect can be described as the effect produced by a moving source of waves in which there is an apparent upward shift in frequency for the observer and the source are approaching and an apparent downward shift in frequency when the observer and the source is receding.
Question (5) Answer : Has both the ends open and fundamental 50 Hz.
Because : The resonant frequencies for the tube open at both ends follow this equation:
| fn | = |
|
, where n = 1, 2, 3, ... |
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A train blowing a siren is approaching you with constant speed. Apparent pitch of siren which...
Problem 3: A certain pipe has resonant frequencies of 234 Hz, 390 Hz, and 546 Hz,...
Problem 3: A certain pipe has resonant frequencies of 234 Hz, 390 Hz, and 546 Hz, with no other resonant frequencies between these values. (Hint: The lower frequency is not necessarily the pipe fundamental frequency) (a) Show that the difference of frequency between two adjacent harmonics has the same expression for a pipe open at both ends as for a pipe closed at one end (b) How long is this pipe? (c) Is this a pipe open at both ends...
SOLUTION (A) Find the frequencies if the pipe is open at both ends. _V 343 m/s...
SOLUTION (A) Find the frequencies if the pipe is open at both ends. _V 343 m/s Substitute into whole harmonics equation, with n = 1. 11-222(2.46 m) = 69.7 Hz Multiply to find the second and third harmonics. 12 - 27 - 139 Hz 13 = 3f7 - 209 Hz (B) How many harmonics lle between 20 Hz and 20000 Hz for this pipe? 343 m/s Set the frequency in the harmonics equation equal to 2.00 x 104 Hz and...
The fundamental of an organ pipe that is closed at one end and open at the...
The fundamental of an organ pipe that is closed at one end and open at the other end is 265.6 Hz (middle C). The second harmonic of an organ pipe that is open at both ends has the same frequency. Part A What is the length of the pipe that is closed at one end and open at the other end? PO AJĄ O O ? Submit Request Answer Part B What is the length of the pipe that is...
ITT LUU UU.) VIIY 15 le fundamental frequency of the closed tube lower than it was...
ITT LUU UU.) VIIY 15 le fundamental frequency of the closed tube lower than it was for the open tube? 2. Increase the frequency and try to find any other harmonics. Why does a tube open at both ends play all the harmonics, but a tube with one end closed only plays the odd harmonics (1, 3, 5, etc.). What is the relationship between the tube length and the wavelength for the third harmonic of a closed tube? QUESTIONS 1....
A pipe organ may contain tens of thousands of pipes of varying shapes, sizes and materials....
A pipe organ may contain tens of thousands of pipes of varying shapes, sizes and materials. (a) A pipe destined for an organ is open at both ends and has a length of 1.2 m. What is the wavelength of the longest standing wave that can be produced by this pipe? (b) The fundamental frequency produced by the pipe is measured to be 150 Hz. Calculate the speed of sound for the air in the pipe. (c) If one end...
Questions: 1. Explain how you can raise the pitch of a note on a guitar by altering the string’s (a) length, (b) tension, or (c) thickness or mass. Be very specific about what you would do to raise th...
Questions: 1. Explain how you can raise the pitch of a note on a guitar by altering the string’s (a) length, (b) tension, or (c) thickness or mass. Be very specific about what you would do to raise the pitch. 2. If the fundamental frequency of a guitar string is 250 Hz, what is the frequency of the second harmonic? Of the third harmonic? Explain. 3. Consider a vibrating guitar string. The loudest harmonic is the fundamental, but many higher...
Please give detailed explanations/solutions, thank you! [5] 4. (a) Write a brief essay on standing waves...
Please give detailed explanations/solutions, thank you!
[5] 4. (a) Write a brief essay on standing waves on stringed musical instruments as compared to standing waves on the pipes of a pipe organ having pipes that are open at both ends as well as pipes that are open at one end and closed at the other. (b) You have been asked to determine the length of a metal tube that has been bent into a complex shape. One end of the...
6. An airhorn is essentially a tube of air that vibrates at certain resonant frequencies, just...
6. An airhorn is essentially a tube of air that vibrates at certain resonant frequencies, just like many musical instruments. The following questions refer to two airhorns, each 85.0 cm long, operating in the same still air (no winds, same temperature, etc.), where the speed of sound is 340 m/s. Horn 1 is a tube that is open at both ends. Horn 2 is a tube that is open at one end but closed at the other. a. Evaluate (T/F/N)...
Ignore question [1], just need the problem description from it. [1] Water flowing in a pipe...
Ignore question [1], just need
the problem description from it.
[1] Water flowing in a pipe is determined to be moving at the velocities given in the diagram below. The higher level is 3 meters above the lower one and the pressure in the lower portion is measured to be 200 kPa. Determine the pressure inside the upper pipe Treat the water as an ideal fluid obeying Bernoulli's equation. Consider the path connecting poin in the lower pipe with point...
Which of the following best describes the relationship between a stock concept and a flow concept?...
Which of the following best describes the relationship between a
stock concept and a flow concept?
A stock concept has a time period
associated with it, whereas a flow concept is an amount of
something at a given point in time.
A stock concept is an amount of something at a given point in
time, whereas a flow concept has a time period associated with
it.
______________________________________________________________________________
What expenditure category of production is largest for most
countries?
Investment
Consumption
Net...
Problem 3: A certain pipe has resonant frequencies of 234 Hz, 390 Hz, and 546 Hz, with no other resonant frequencies between these values. (Hint: The lower frequency is not necessarily the pipe fundamental frequency) (a) Show that the difference of frequency between two adjacent harmonics has the same expression for a pipe open at both ends as for a pipe closed at one end (b) How long is this pipe? (c) Is this a pipe open at both ends...
SOLUTION (A) Find the frequencies if the pipe is open at both ends. _V 343 m/s Substitute into whole harmonics equation, with n = 1. 11-222(2.46 m) = 69.7 Hz Multiply to find the second and third harmonics. 12 - 27 - 139 Hz 13 = 3f7 - 209 Hz (B) How many harmonics lle between 20 Hz and 20000 Hz for this pipe? 343 m/s Set the frequency in the harmonics equation equal to 2.00 x 104 Hz and...
The fundamental of an organ pipe that is closed at one end and open at the other end is 265.6 Hz (middle C). The second harmonic of an organ pipe that is open at both ends has the same frequency. Part A What is the length of the pipe that is closed at one end and open at the other end? PO AJĄ O O ? Submit Request Answer Part B What is the length of the pipe that is...
ITT LUU UU.) VIIY 15 le fundamental frequency of the closed tube lower than it was for the open tube? 2. Increase the frequency and try to find any other harmonics. Why does a tube open at both ends play all the harmonics, but a tube with one end closed only plays the odd harmonics (1, 3, 5, etc.). What is the relationship between the tube length and the wavelength for the third harmonic of a closed tube? QUESTIONS 1....
Please give detailed explanations/solutions, thank you!
[5] 4. (a) Write a brief essay on standing waves on stringed musical instruments as compared to standing waves on the pipes of a pipe organ having pipes that are open at both ends as well as pipes that are open at one end and closed at the other. (b) You have been asked to determine the length of a metal tube that has been bent into a complex shape. One end of the...
Ignore question [1], just need
the problem description from it.
[1] Water flowing in a pipe is determined to be moving at the velocities given in the diagram below. The higher level is 3 meters above the lower one and the pressure in the lower portion is measured to be 200 kPa. Determine the pressure inside the upper pipe Treat the water as an ideal fluid obeying Bernoulli's equation. Consider the path connecting poin in the lower pipe with point...
Which of the following best describes the relationship between a
stock concept and a flow concept?
A stock concept has a time period
associated with it, whereas a flow concept is an amount of
something at a given point in time.
A stock concept is an amount of something at a given point in
time, whereas a flow concept has a time period associated with
it.
______________________________________________________________________________
What expenditure category of production is largest for most
countries?
Investment
Consumption
Net...
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