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sasho [114]
3 years ago
7

What properties does a loud, shrill whistle have? a.) high amplitude, high frequency

Physics
1 answer:
marysya [2.9K]3 years ago
4 0

Answer:

a.) high amplitude, high frequency

Explanation:

Frequency and amplitude are properties of sound. Varying these properties changes how people perceive sound.

While hearing sound of a particular frequency we call it pitch i.e., the perception of a frequency of sound.

High pitch means high frequency and high frequency is perceived to have a shrill sound.

The loudness of a sound is measured by the intensity of sound i.e., the energy the sound possesses per unit area. As the amplitude increases the intensity increases. So, a loud sound will have higher density.

Hence, the loud shrill whistle will have high frequency and high amplitude.

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To develop this problem we will use the concepts related to Speed in a string that is governed by Tension (T) and linear density (µ)

V = \sqrt{\frac{T}{\mu}}

Our values are given as:

f = 60Hz\\\mu = 230 g/m = 0.230kg/m\\T = 65N\\P = 75w

Replacing we have that the velocity is

V = \sqrt{\frac{T}{\mu}}

V = \sqrt{\frac{65}{0.230}}

V = 16.81m/s

From the theory of wave propagation the average power wave is given as

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Where,

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A^2 = \frac{2P}{\mu (2\pi f)^2 V}

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3 years ago
A bullet is shot downward out of a high building with an initial speed of 10 m/s. How fast is the bullet traveling after 5 secon
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Pls help, me, i nees to submit now
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Answer:

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Explanation:

To obtain the answer to the question given, we must observe the characteristics of image formed by a plane mirror.

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3. Same height as the object.

4. Virtual.

With the above information, we can calculate the distance between the boy and his image as follow:

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Explanation:

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