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Nana76 [90]
2 years ago
13

A police car is moving to the left at 34m/sec while its siren is emitting a 600Hz tone. What tone would you hear if you were par

ked along side the road
Physics
1 answer:
faust18 [17]2 years ago
8 0

Answer:

545.89\ \text{Hz}

Explanation:

v_o = Velocity of observer = 0

v_s = Velocity of source = 34 m/s

v = Speed of sound in air = 343 m/s

f = Emitted frequency = 600 Hz

Doppler effect will be observed

f_o=f(\dfrac{v+v_o}{v+v_s})\\\Rightarrow f_o=600(\dfrac{343+0}{343+34})\\\Rightarrow f_o=545.89\ \text{Hz}

The frequency heard will be 545.89\ \text{Hz}.

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\overline{v}={\frac{\Delta x}{\Delta t}}

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Distance or Height of the cliff from which the ball was thrown from;

To get the height of the Cliff, we use the Second Equation of Motion:

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Standing waves can ruin the acoustics of a concert hall if there is excessive reflection of the sound waves that the performers
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Answer:

The answer to the questions is;

In terms of standing waves, the listener moves from a location with high amplitude to one with lower amplitude or vibration (anti-node to node)

The distance 4.1 cm is equivalent to λ/4

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Therefore 4.1 cm is λ/4

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