Question

a) Verbally describe how standing waves look for a string? A pipe that is open at both ends? A pipe that is closed at one end and open at the other?

b) What produces the vibrations in various string instruments?

c) How do the wavelength and frequency of a sound change if they are emitted by an object (such as an automobile) which is moving away from you? Towards you?

Please type your responses for better legibility.

Answer #1

a) A standing wave is established over a stretched string such that Nodes and Antinodes are formed on it. Nodes are the points of zero displacement and Antinodes are the points of maximum displacement. DostaDis between two consecutive nodes or Antinodes are equal to half of wavelength of the waves whose superposition gives the stationary waves.

In a closed end organ pipe, there is always an Antinode at open end and Node at closed end.

In an open end organ pipe there is antinoAnt at both the open ends. Frequency in open end organ pipe is twice to that in closed end organ pipe.

b) in string instruments, vibrating strings make wind columns to vibrate and create sound

C) If the automobile is moving away from us, its frequency will appear to be reduced and wavelength to be increased, on the other hand, if automobile is approaching us, frequency will increase while wavelength will decrease

a) What are nodes and antinodes for a standing wave?
b) How is the distance between nodes related to the wavelength
of a standing wave?
c) How do standing waves look for a string?
d) A pipe that is open at both ends?
e) A pipe that is closed at one end and open at the other?
please type your responses.

Four standing waves, labeled A through D, are described
below:
Wave A: first harmonic; pipe closed at one end; length = 1 m
Wave B: first harmonic; pipe open at both ends; length = 1 m
Wave C: second harmonic; pipe open at both ends; length = 3
m
Wave D: second harmonic; pipe closed at one end; length = 3
m
Rank the standing waves in order of decreasing frequency. Rank
from greatest to smallest. To rank items as...

1a. Derive a formula for the wavelength of a standing wave on a
fixed string at both ends in terms of the number of antinodes, n,
and the length of the string.
1b. For an aluminum rod, when a wave is set up in the rod, do
you expect the ends of the rod to allow vibrations or not? Are they
considered open or closed for displacement?
1c. Draw schematic pictures of the two longest wavelengths that
could fit on...

What is the length of an open-pipe resonator with a fundamental
frequency of 400.0Hz 400.0 Hz ? (Assume the speed of sound is
331m/s 331 m/s .)
flute is an open-pipe resonator that can produce a wavelength
that is twice as long as itself. A clarinet is a closed-pipe
resonator. What is the longest wavelength that a clarinet can
produce?
Why do the same notes sound different on different musical
instruments?
What is the possible number of nodes and antinodes...

Standing sound waves are produced in a pipe that is 1.80 m
long.
If the pipe is closed at the left end and open at the right end
, determine the locations along the pipe (measured from the left
end) of the displacement nodes for the fundamental frequency.
If there is more than one value, separate your answers with
commas.
x=
m
SubmitMy AnswersGive
Up
Incorrect; One attempt remaining; Try Again
Part E
If the pipe is closed at the...

part 1. A 9.00-m long string sustains a three-loop standing wave
pattern as shown. The string has a mass of 45 g and under a tension
of 50 N.
a. What is the frequency of vibration?
b. At the same frequency, you wish to see four loops, what
tension you need to use.
Part 2.
a. Determine the shortest length of pipe, open at both ends,
which will resonate at 256 Hz (so the first harmonics is 256Hz).
The speed...

Standing Waves
1. Draw a sine wave. On this graph, indicate what the Amplitude
and Period are. If someone just gave you this graph, how could you
find the Frequency?
2. Imagine that two water waves moving in opposite directions
run into each other. What will the resulting wave look like?
3. When 2 waves interfere, can the resulting wave have a larger
amplitude than either of the two original waves? When?
4. What is the definition of a node?...

9. (a) A 1 m long string has a mass per unit length of 1.5×10−3
kg/m and is under a tension of 35 N. Find the first four harmonics
of this string.
(b) A given pipe is 1.5 m long. If the speed of sound through
this pipe is 343 m/s, what are the frequencies of the first three
harmonics of the pipe when it is: (i) open at both ends, (ii) open
at only one end.
10. A truck...

A stone is dropped from the top of a cliff. The splash it makes
when striking the water below is heard 3.2 s later. How high is the
cliff?
2. The pressure variation is a sound wave is given by Δ P =
0.0035 sin (0.38 π x – 1350 π t) Determine a. the wavelength b. the
frequency c. the speed and d. the displacement amplitude of the
wave. Assume the density of the medium to be 2.2 x...

ADVERTISEMENT

Get Answers For Free

Most questions answered within 1 hours.

ADVERTISEMENT

asked 26 seconds ago

asked 8 minutes ago

asked 12 minutes ago

asked 12 minutes ago

asked 18 minutes ago

asked 29 minutes ago

asked 31 minutes ago

asked 44 minutes ago

asked 58 minutes ago

asked 59 minutes ago

asked 1 hour ago

asked 1 hour ago