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pantera1 [17]
3 years ago
13

Describe briefly the production of sound in trumpet​

Physics
2 answers:
Reptile [31]3 years ago
4 0

Answer:

The trumpet is constructed of brass tubing bent twice into a rounded oblong shape. As with all brass instruments, sound is produced by blowing air through closed lips, producing a "buzzing" sound into the mouthpiece and starting a standing wave vibration in the air column inside the trumpet.

zhannawk [14.2K]3 years ago
3 0

Answer:

First, let us remember that the sound transmitted to the listener is found from a vibration created in the bowl of the mouthpiece and filtered by the instrument which transmits certain frequencies better than others. The typical transfer function has been studied by Arthur Benade. It varies according to the nuance played: the harder you play, the richer the sound is in high harmonics. To put it simply, the spectrum of perceived sound depends on three factors:

• the sound spectrum created in the mouthpiece

• the transformation of the sound spectrum by the trumpet

• transmission of the sound spectrum to the listener or trumpeter

Explanation:

note: the sound perceived by the trumpeter is different from the sound perceived by the listener.

Indeed, the trumpeter is in a particular listening position, very close behind the instrument and not a few meters in front; in addition, part of the sound it perceives is transmitted by bone conduction from the mouth to the inner ear. You can easily see this when you play despite a good sinusitis or by covering your ears with earplugs: the sound perceived is nasal and unpleasant, because the transmission by bone conduction becomes predominant.

The vibration of the instrument, in particular of the horn, gives the sound a color perfectly perceptible by the one who plays it but little perceived by the listener. The reason is that the energy transmitted to the surrounding air by the vibration of the metal is weak compared to that transmitted by the air column, but since the trumpeter is just behind the pavilion, which partially masks the vibration of the column of air, the proportion of sounds coming from the two sources is different for him. To convince yourself, read Jim Donaldson's testimony * ("The Schilke Loyalist").

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2 years ago
What are some indicators that a chemical reaction is occurring? Check all that apply.
VikaD [51]
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3 years ago
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A mass m attached to a horizontal massless spring with spring constant k, is set into simple harmonic motion. its maximum displa
Lesechka [4]
At the point of maximum displacement (a), the elastic potential energy of the spring is maximum:
U_i= \frac{1}{2} ka^2
while the kinetic energy is zero, because at the maximum displacement the mass is stationary, so its velocity is zero:
K_i =0
And the total energy of the system is
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Viceversa, when the mass reaches the equilibrium position, the elastic potential energy is zero because the displacement x is zero:
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while the mass is moving at speed v, and therefore the kinetic energy is
K_f =  \frac{1}{2} mv^2
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For the law of conservation of energy, the total energy must be conserved, therefore E_i = E_f. So we  can write
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3 years ago
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2 years ago
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A block of mass 0.245 kg is placed on top of a light, vertical spring of force constant 4 975 N/m and pushed downward so that th
FromTheMoon [43]

Answer:

10.99 m

Explanation:

m = mass of the block = 0.245 kg

k = spring constant of the vertical spring = 4975 N/m

x = compression of the spring = 0.103 m

h = height to which the block rise

Using conservation of energy

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(0.245) (9.8) h = (0.5) (4975) (0.103)²

h = 10.99 m

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3 years ago
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