Question

**In the “Resonance” lab, you used a “piano” to generate a
frequency of 261.63 Hz to explore the different resonance lengths.
With it you found the first resonance close to 33 cm. Where would
you expect to find the next resonance?**

**A.66cm**

**B. 99 cm**

**C. 49.5 cm**

**D. 132 cm**

please show work

**in the “Resonance” lab, you used a “piano” to generate a
frequency of 261.63 Hz to explore the different resonance lengths.
With it you found the first resonance close to 33 cm. This
resonance was found in an atmosphere of air. What would happen if
you replaced the air with helium? Note that the speed of sound in
helium is 972 m/s. The speed of sound in air is 343
m/s.**

**A. The first resonance would be found at a length
shorter than 33 cm because the wavelength decreases.**

**B.****The first resonance would be found at
a length larger than 33 cm because the wavelength
decreases.**

**C.****The first resonance would be found at
a length shorter than 33 cm because the wavelength
increases.**

**D.****The first resonance would be found at
a length larger than 33 cm because the wavelength
increases.**

Answer #1

1. An object of mass M oscillates on a spring with maximum
amplitude A. If the amplitude is doubled, how will it change the
period?
The period is increased by a factor of 2
The period is increased by a factor of 4
The period is decreased by a factor of 2
The period is decreased by a factor of 4
The period stays the same
2. In the “Resonance” lab, you used a “piano” to generate a
frequency of...

A sound wave caused by a piano has a frequency of 678 Hz, and
the speed in air is 330 m/s.
(a) What is the wavelength of this wave?
(b) At any given point in space, how long does it take for the
air to go from maximally compressed to maximally expanded?
(c) For two points 72.5 cm apart, what is the phase difference
of the wave between these points?

A stretched string can oscillate in resonance at 1280. Hz and at
1536 Hz. There are no resonance frequencies between the
frequencies.
a. what is the fundamental resonance frequency of the
string?
b. what is the length of an organ pipe, open at both ends, that
has the same fundamental frequency as the string? (Assume that the
velocity of the sound in air is 343.0 m/s)
c. Would the organ pipe of part (b) also be capable of resonance
at...

2)If the positions of resonance in the tube were found at: 15.00
cm, 20.2 cm, 26.2 cm, 32.4 cm, 38.2 cm, 43.7 cm, and 49.2 cm.
Explain how these numbers are related to the wavelength. Calculate
the wavelength. Calculate the wavelength of the wave.
3)Calculate the next position of the resonance on the tube in
cm.
4)The sound propagation velocity in air is only dependent of the
temperature of the air. If the room temperature is 68.9F, calculate
the sound...

A. What length should an oboe have to produce a fundamental
frequency of 244 Hz on a day when the speed of sound is 343 m/s? It
is open at both ends.
B. What frequency is received by a person watching an oncoming
ambulance moving at 119 km/h and emitting a steady 706 Hz sound
from its siren? The speed of sound on this day is 333 m/s.
C. What energy in millijoules falls on a 0.808 cm diameter
eardrum...

Speed of Sound Lab
Use the following data taken previously:
Data Page
Room Temperature, T c (Celsius) = 22 0
Theoretical Speed of Sound, v (m/s) = ____?____ Use Equation
2
Frequency of Sound Waves (tuning fork), f (Hz) = 512
First Resonance Point
Trial
1 17 cm
2 18 cm
3 17 cm
Now determine
Average = _____________
Wavelength, λ (m) = _____________ Use λ = 4L (First
Resonance)
Experimental Speed of Sound (m/s) = _____________ Use Equation
1...

1A: How long is a wavelength of infrasound with a
frequency of 2 Hz?
_________m
1B: What frequency would you need to produce a sound
wave in room-temperature air with a wavelength of 7
m?
__________Hz
1C: Radio waves travel at the speed of light, which is
3.00 ? 108 m/s. What is the wavelength for a FM station
broadcasting at 102.1 MHz (the prefix M is "mega" and means
106)?
__________m
1D: The musical note "middle C" has a...

Musical notes have names (A,B,C, etc). The lowest A on a piano
is called A0. If you go up an octave, the next A would be called
A1. An octave higher, A2. The A near the middle of the keyboard is
A4 (also called "concert A"). A similar pattern is true for all the
notes. In a certain set of organ pipes, the speaking length (that's
an effective physical length) for the pipe that makes the note E5
(f=660 Hz)...

Musical notes have names (A,B,C, etc). The lowest A on a piano
is called A0. If you go up an octave, the next A would be called
A1. An octave higher, A2. The A near the middle of the keyboard is
A4 (also called "concert A"). A similar pattern is true for all the
notes.
In a certain set of organ pipes, the speaking length (that's an
effective physical length) for the pipe that makes the note C5
(f=524 Hz)...

GROUP REPORT ANALYSIS:
Only one report shall be handed in for each group. The lab
number and name shall be on the report along with your instructor’s
name and the lab section. Include every group member’s name on the
report.
Data
A recording of the temperature be sure to (include units) shall
be noted from Step 3, along with your calculation for the speed of
sound in air. Provide a succinct description of what you did in the
lab for...

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